Authoring Reference

All gameplay content is authored as ScriptableObjects (Create > 2D Tower Defense Maker > …) plus a few scene components (Add Component > 2D Tower Defense Maker > …). At Play, LevelAsset.Bake() turns them into immutable core definitions.

Units: distances in world units, times in game seconds, armor/resist values as fractions (0–1).

Contents: Common data · Enemy · Tower · Soldier · Hero · Projectile · Status Effect · Spell · Wave Set · Level · Scene components

The built-in mechanic blocks (chains, multi-target attacks, impact payloads and knockback, pulses, healing, shields, combat modifiers, traps, beams, reflection, life steal, path transfers, permanent auras, mine fields, companions and on-site revival) are described in Mechanic Library; HUD, feedback, camera and audio components in Presentation.

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Common data

Identity and view (all entity assets: Enemy, Tower, Soldier, Hero)

Field	Meaning
Template Id	Unique id inside a level. Blank = asset name. Two assets with the same id in one level fail the bake.
Display Name	Name in menus. Blank = asset name.
View > View Key	Lookup key for views. Blank = template id.
View > Prefab	Optional prefab (pooled). With no prefab, a matching ArtSet entry supplies the sprite; otherwise a primitive is generated.
View > Shape / Color / Size	Placeholder sprite (Square, Circle, Diamond, Triangle, Keep, Bastion, Spire, Hall, Blob, Arrowhead, Hulk, Shield, Crest, Dart, Orb, Wing).
View > Show Health Bar	Draw a health bar.
View > Shaded	Generated sprites use the outlined, shaded style (off = flat silhouettes).
View > Facing	None, FlipSprite or ScaleX (for multi-sprite rigs) to face the movement direction.
View > Drive Animator	Drive an Animator on the prefab with the standard parameters (Presentation).
View > Hooks	Optional VFX prefabs and audio cues for spawn, attack, hit and death (Presentation).
Extensions	Optional TemplateExtensionAssets (your subclasses) that decorate the baked template, for example with custom data (Extending the Framework).

Tip: add an EntityView component to custom prefabs to control sorting and which renderer is tinted; it is added automatically otherwise.

Damage

Field	Meaning
Kind	Physical, Magical, True, Explosion, Electric, Poison. See Concepts – Damage pipeline.
Minimum / Maximum	Roll range.
Radius	0 = single target; > 0 = area damage (range ellipse).
Edge Multiplier	Damage factor at the edge of the area, interpolated from 1 at the centre.
Falloff	DistanceEndpoints (max at centre → min at edge), RolledLinear (one roll × edge factor), ConstantMaximum.
Physical Pierce / Magical Pierce	Armor / magic resist ignored by this hit (subtracted).
Effects	Status effects attached to every unit this hit damages.
Experience Rate	Hero experience per point of health removed (hero attacks).
Impact	Optional payload after each resolved hit: secondary blast, residual region, knockback and/or a path transfer (Mechanic Library).
Life Steal	Optional healing of the attacker from the health this hit actually removes (Mechanic Library).

Secondary blasts and region pulses use the same fields without Impact and Life Steal (BasicDamageData), so payloads cannot nest.

Melee

Field	Meaning
Enabled	Off = no melee slot. Soldiers without melee cannot block.
Damage	Damage per strike.
Cooldown	Seconds between strikes.
Range	Contact range (range ellipse).

Ranged attack (list; each entry is an independent channel)

Field	Meaning
Range	Horizontal semi-axis r of the range ellipse; vertical is r × k.
Minimum Range	Inner exclusion radius.
Cooldown	Seconds between attacks.
Damage	Damage per hit.
Projectile	Projectile asset; empty = instant hit.
Targets Flying / Targets Ground	Eligible target types.

Recovery (enemy regeneration, hero recovery)

Field	Meaning
Enabled	Turn recovery on.
Amount / Interval	Health per recovery tick and seconds between ticks.
Damage Grace	Seconds without taking damage before recovery starts.
Idle Only	Only while not moving or fighting. Turn off for enemies (they are never idle).

Stat modifier (status effects and ability passives)

Field	Meaning
Speed Scale	Movement multiplier (0.6 = 40% slow, 0 = rooted).
Output Scale	Outgoing damage multiplier.
Input Scale / Magical Input Scale	Incoming damage multipliers.
Physical Shift / Magical Shift / Poison Shift	Added armor / resist (fraction, may be negative).
Stun	Stops movement and attacks while active.
Combat	Range Scale, Disable Attacks, Ignore Blocking, Untargetable (Mechanic Library).

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Enemy

Create > 2D Tower Defense Maker > Enemy (EnemyAsset). Required for every unit a wave spawns.

Group	Field	Meaning
Vitals	Health	Maximum hit points.
	Physical Armor / Magical Armor / Poison Armor	Damage reductions (0–1).
	Speed	Units per second along the lane.
Reward	Gold	Bounty when killed.
	Life Cost	Lives lost when it leaks.
Blocking	Blockable	Whether soldiers/heroes can block it.
	Blocker Capacity	How many friendly units can hold it at once.
	Engagement	Where blockers stand. Contact Bias X is this enemy's share of the horizontal gap (usually half its drawn body width plus a small gap), Y a signed world-Y shift; Row Spacing is the world-Y offset of the 2nd and 3rd blocker rows (they stand half of it closer). Blockers stand on the side the enemy walks toward, independent of melee range.
	Flying	Flying units ignore blocking and can only be hit by attacks with Targets Flying.
Combat	Melee	Attack used against blocking units.
	Ranged Attacks	Optional attacks against friendly units (they pick the closest).
Abilities	Regeneration	Recovery (keep Idle Only off).
	Melee Evasion	Chance to dodge each incoming melee strike.
	Status Immunities	Effect ids or families this unit ignores (e.g. slow).
Mechanics	Tags	Tag bits matched by Required/Rejected Tags of status effects and mechanic Targets.
	Behavior	Always-on action channels (same fields as ability actions), for example a periodic shield cast on nearby allies.
	Aura	Area effect emitted when the unit appears. For a permanent aura enable Until Source Lost (and Follow Source): it lasts while the unit lives and is removed with it. May be pulse-only (heal or damage pulses without a status effect).
	Reflection	Thorns: returns a Share of the health the unit actually loses to its attacker as one hit of Kind (Mechanic Library).
	Death Summon	Enemies released where it dies (split); they continue along the path.
	Death Succession	Successor rules for the released enemies: Chain Budget, Rise Duration, Bounty Policy, rise protection (Mechanic Library).
	Revive	Return on the spot: Returns, Down Delay, Rise Duration, Return Share, Invulnerable / Untargetable While Rising, Clear Effects (Mechanic Library).

Inspector extras: effective HP against each damage kind and warnings (zero speed, full immunity). The validator warns about auras without a payload and auras that do not follow their unit, returns that never happen (Returns 0, no health back) and successor rules with nothing to release.

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Tower

Create > 2D Tower Defense Maker > Tower (TowerAsset). Each tier is a separate asset; tiers link through Upgrades.

Group	Field	Meaning
Economy	Cost	Gold to build this tier, or to upgrade into it.
Tree	Upgrades	Next tiers. One entry = linear upgrade; two or more = branch.
Combat	Ranged Attacks	Attack channels.
	Target Priority	Default priority: First, Last, Strongest, Weakest, Closest.
Abilities	Abilities	Purchasable abilities (see below), usually on final branches.
Barracks	Soldier	Assigning a Soldier asset turns this tier into a barracks.
	Soldier Count	Living soldiers maintained.
	Rally Radius	Maximum distance tower → rally point (range ellipse).
	Respawn Time	Seconds before a fallen soldier is replaced.
	Formation Radius	Spread of the idle formation around the rally point.
Companions	Companions	Owner-bound escorts or a flying follower kept beside the tower; they leave when it is sold (see Hero > Companions and Mechanic Library).
Text	Description	Shown in menus.

Only towers listed in the level's Available Towers can be built; their upgrade tiers, soldiers and projectiles are collected automatically. Sale refunds come from the level's Refund Share; the old per-tower Refund Ratio field is hidden and unused.

Abilities (tower abilities and hero skills)

Abilities / Skills entries (AbilityData):

Field	Meaning
Id	Ability id; blank = display name.
Display Name / Description	Button text and tooltip.
Reset Cooldown On Purchase	Reset this ability's timers whenever a rank is bought.
Ranks	Ranks in purchase order. Each rank replaces the previous rank's payload.

Each rank (AbilityRankData):

Field	Meaning
Cost	Gold (tower) or skill points (hero).
Required Level	Hero skills only.
Passive	Stat modifier active while this rank is owned.
Soldier Replacement	Barracks only: living and future soldiers become this Soldier asset.
Actions	Timed action channels (below).

Each action (AbilityActionData) runs on its own cooldown; payloads can be combined:

Field	Meaning
Cooldown	Seconds between activations.
Initial Delay	Delay before a newly bought channel can fire.
Skill Experience Per Rank	Hero only: experience per successful activation × rank (also for actions that only carry a chain, multi-target, trap, mine, beam, transfer, raise or custom payload).
Use Attack + Attack	Fire an extra ranged attack.
Self Effect	Status effect attached to the owner.
Use Summon + Summon	Create units (see Summon).
Area	Emit an area effect region at the owner (may be pulse-only).
Use Chain + Chain	Chained attack jumping between nearby enemies (Mechanic Library).
Use Multi Target + Multi Target	One activation hitting several targets (Mechanic Library).
Use Trap + Trap	Place a trap that arms, then triggers on nearby units (Mechanic Library).
Use Beam + Beam	Channel a continuous beam with an exact damage budget (Mechanic Library).
Use Transfer + Transfer	Move nearby enemies to an exact path point (Mechanic Library).
Use Mines + Mines	Throw a mine onto a lane node in a band around the actor; it arms after flight, landing and its arm delay (Mechanic Library).
Use Raise + Raise	Raise new units (enemy or soldier) from nearby bodies of the fallen (Mechanic Library).
Custom Action	Your own AbilityActionAsset subclass (Extending the Framework).

Chain, multi-target, trap, mine, beam, transfer, raise and custom payloads run together as one custom payload; the action counts as successful when any of them succeeds (for example a trap placed, a mine thrown, a body reserved or a beam started). Only successful activations restart the cooldown and award skill experience.

Tip: the tower inspector shows DPS against several armor values, range-ellipse size, cumulative investment and the refund using the level's Refund Share (the first level whose tower trees contain this tier; otherwise the default 0.6).

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Soldier

Create > 2D Tower Defense Maker > Soldier (SoldierAsset). Produced by barracks, ability replacements and reinforcement spells.

Field	Meaning
Health	Maximum hit points.
Physical Armor / Magical Armor	Reductions.
Speed	Movement speed.
Intercept Radius	Radius around the rally point in which it engages enemies.
Engagement > Contact Bias	Its share of the horizontal gap to the enemy it blocks (X, usually half its drawn body width plus a small gap) and a world-Y shift; added to the enemy's share.
Melee	Required to block.
Ranged Attacks	Optional.
Tags	Tag bits for effect and mechanic eligibility.
Flying	Only anti-air attacks reach it. Needed by flying follower companions; keep it off for barracks soldiers and ground escorts.

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Hero

Create > 2D Tower Defense Maker > Hero (HeroAsset). Add it to the level's Heroes.

Group	Field	Meaning
Vitals	Health, Physical Armor, Magical Armor, Speed	Level-1 base values.
	Engage Radius	Radius in which an idle hero engages enemies.
	Engagement > Contact Bias	Same as on a Soldier: the hero's share of the horizontal gap to the enemy it blocks.
	Recovery	Health recovery (usually idle only).
Combat	Melee, Ranged Attacks	Attacks.
	Experience Per Damage	Experience per point of health the hero's attacks remove.
	Tags	Tag bits for effect and mechanic eligibility.
Growth	Skill Mode	AutoUnlock (ranks unlock automatically by level) or SpendPoints (player spends points).
	Levels	Growth rows; row 1 is level 1 at 0 XP. Each row: Experience (cumulative), Skill Points (total budget), Health Scale, Damage Scale, Armor Bonus, Magic Resist Bonus.
	Difficulty Experience Scale	Experience multiplier.
	Skills	Abilities with point costs and required levels (see Abilities).
Respawn & Movement	Respawn Delay	Seconds dead before returning.
	Return Duration	Seconds of invulnerable return.
	Use Respawn Position / Respawn Position	Return at a fixed point instead of where it fell.
	Move Point Rule	Which destinations a move order accepts (see Point rule).
Companions	Companions	Owner-bound companions (CompanionData): Unit (Soldier asset), Slots, Mode (Ground Escort / Flying Follower), Refill Delay, Initial Delay, Formation Radius, follow distances and Acceleration (followers), Wait On Owner Death, Remove With Owner, Reconnect On Return, Rally Radius (towers without barracks), optional Point Rule (Mechanic Library).

Level, experience and skills are kept when the hero dies. Companion damage earns the hero experience; ground escorts take new places on every move order.

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Projectile

Create > 2D Tower Defense Maker > Projectile (ProjectileAsset).

Field	Meaning
Kind	Instant (immediate hit, beam drawn), Straight (fixed aim point), Ballistic (fixed aim point, visual arc), Homing (follows target).
Speed	Units per second.
Arc Height	Visual arc height (ballistic).
Lifetime	Seconds before an unresolved projectile expires.
Flight Time	Fixed flight time; 0 = distance / speed.
Hit Radius	Fixed-aim single-target shots still hit if the target is this close to the aim point.
View Key	Blank = asset name. Must be unique (validator warns).
Impact Area	Optional region created once where the projectile arrives, also on empty ground (status effect and/or pulse).
View: Prefab, Shape, Color, Size, Impact Fx Size, Beam Width, Shaded, Trail Time, Trail Width, Splash Ring	Presentation.
Hooks: Launch Vfx, Impact Vfx, Launch Cue, Impact Cue	Optional pooled VFX and audio.

Straight and ballistic shots aim at a predicted position. Area-damage shots always explode at the aim point.

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Status Effect

Create > 2D Tower Defense Maker > Status Effect (StatusEffectAsset). Reference it from damage Effects, area effects, ability Self Effect or spells.

Group	Field	Meaning
Identity	Effect Id	Used for duplicate checks; blank = asset name.
	Display Name	UI name.
	Family	Group name used by immunities and suppression (e.g. slow, poison).
	Rank	Strength; a higher rank can replace a lower one.
	Duration	Lifetime in seconds.
Stacking	Stack Equal Rank	Allow separate instances at equal rank.
	Replace Lower Rank	Replace lower-ranked instances of the same id.
	Refresh Equal Rank	Re-applying at equal rank refreshes the lifetime (modifiers are not applied twice).
Eligibility	Required Tags / Rejected Tags	Bit masks checked against the target's tags.
	Forbidden Ids / Forbidden Families	Cannot attach while one of these is present.
	Remove Forbidden	Remove existing forbidden effects instead.
Payload	Modifier	Stat modifier while attached (slow, stun, armor shift, …).
	Periodic	Damage over time: Kind, integer Minimum–Maximum per tick, Interval, optional First Damage on attach and Last Damage on natural expiry (negative = off).
	Healing	Healing over time: Healing (amount + share of maximum health), Interval, Heal On Attach, Heal On Expire.
	Shield	Damage-absorbing shield per attachment: Amount, Maximum Health Share, Channels, Refill On Refresh (Mechanic Library).
View	Tint, Tint Strength, Icon	Body tint and icon above affected units (shields also use the tint for their bubble).

Units get their tags from the Tags field of Enemy, Soldier and Hero assets (32 bits in the Inspector). Effects with periodic damage, healing or a shield only attach to units with health.

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Spell

Create > 2D Tower Defense Maker > Spell (SpellAsset). Add it to the level's Spells (order = button order and number keys 1–9).

Group	Field	Meaning
Identity	Spell Id, Display Name, Description, Color	Id (blank = asset name), button text, tooltip, button/preview colour.
Rules	Kind	Reinforcement (summon friendly units), AreaStrike (scattered timed strikes), AreaEffect (region only).
	Cooldown	Seconds; consumed only by an accepted cast.
	Unlock Wave	First wave in which it can be cast (0 = before the first wave).
	Point Rule	Accepted target points (below).
Payload	Support	Summon for Reinforcement.
	Strikes	Damage (needs a radius), Projectile, Count, Interval, Delay, Scatter Radius, Placement Attempts, Launch Offset, Targets Flying/Ground.
	Area	Optional lingering region at the target point (any kind).

Point rule (spells and hero movement)

Field	Meaning
Require Path	Point must be near a lane; accepted points are projected onto it.
Path Tolerance	Maximum distance to the nearest lane (range ellipse).
Use Bounds / Minimum / Maximum	Restrict to a rectangle.

The same rule is used for the HUD's valid/invalid preview and by the simulation when the command arrives.

Summon

Field	Meaning
Unit	Soldier asset (friendly) or Enemy asset (hostile).
Count, Delay, Interval	Units per activation and timing.
Lifetime	Seconds; 0 = permanent.
Formation Radius	Spread of friendly units.
Cancel With Source	Cancel pending units if the source dies.
Population Limit	Max alive + pending per source; 0 = unlimited.

Area effect

Field	Meaning
Enabled, Effect	Region on/off and the status effect it attaches. Leave Effect empty for a pulse-only region.
Radius, Duration, Interval	Range ellipse, lifetime, seconds between scans.
Until Source Lost	Permanent region: ignores Duration, lasts while its source lives and is removed (with the effects it attached) when the source dies or is removed. Meant for auras; needs a living source, so spells and impacts emit nothing (the validator warns).
Max Targets	Recipients per scan; 0 = unlimited.
Targets Enemies	Enemies, otherwise friendly units.
Follow Source, Remove On End	Move with the source; strip effects when the region ends.
Targets Flying, Targets Ground, Include Towers	Recipient filters (Include Towers applies to attached effects).
Pulse	Direct damage and/or healing on every occupant at each scan (Mechanic Library).

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Wave Set

Create > 2D Tower Defense Maker > Wave Set (WaveSetAsset). Best edited in Tools > 2D Tower Defense Maker > Wave Timeline.

Wave

Field	Meaning
Auto Delay	Seconds after the previous wave finished emitting before this wave starts by itself.
Call Delay	Seconds after the previous wave finished emitting before the player may call it early (clamped to Auto Delay).
Early Gold Per Second	Reward per rounded remaining second when called early (never for wave 1).
Auto Start First	Wave 1 only: start without waiting for the player.
Groups	Groups in this wave.

Group: Path Index (index into the level's paths), Start Delay (after the wave starts), Entries (run in order).

Spawn entry

Field	Meaning
Enemy	Enemy asset. Entries without an enemy are skipped.
Count	Number of units.
Interval	Seconds between units (the first unit appears one interval after the entry starts). 0 = one per tick.
Start Delay	Extra delay relative to when this entry is reached.
Lane Selection	Fixed, RoundRobin (starting at Lane Index), Random.
Lane Index	Fixed lane or first round-robin lane.
Following Gap	Delay before the next entry in the group.
Alternate Enemy / Same Kind Limit	Alternate between two enemies every N units (0 = off), sharing Count.

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Level

Create > 2D Tower Defense Maker > Level (LevelAsset).

Group	Field	Meaning
Geometry	Paths	Path data (centre line, Lane Count, Lane Spacing, Entry Node, Exit Node (−1 = last), per-node lane spacing, Air Route). Usually written from the scene (see Level Authoring).
	Build Slots	Slot position and default rally point.
Content	Waves	Wave Set asset.
	Available Towers	Base towers buildable on empty slots.
	Extra Templates	Additional entity assets to register (e.g. units spawned only by your scripts).
Economy	Starting Gold, Starting Lives	Initial values.
Ranges	Override Range Y Scale / Range Y Scale	Range ellipse ratio k for this level (otherwise the runner's value).
Rules	Leak Bounty Share	Share of bounty still paid on a leak (default 0).
	Refund Share	Sale refund after the first wave has started (default 0.6).
	Override Early Call Rate / Early Call Reward Rate	Use one rate for all waves instead of each wave's own.
	Early Call Spell Cooldown Cut	Early calls also shorten cooling spells.
	Early Call Cut Threshold	Remaining time must exceed this for the spell cut.
	Victory Rating	Two Star Life Ratio (default 0.5) and Three Star Life Ratio (default 1): share of starting lives (0..1) still left needed for two / three stars (inclusive). Rated by the simulation (State.VictoryStars).
Player	Spells	Spells in button order.
	Heroes	Heroes spawned at start.
	Hero Spawn	Spawn point (additional heroes are offset sideways).

Inspector buttons: Validate Bake, Wave Timeline, Validate Project.

Upgrading from an earlier build: the old level field Star Rating (fractions or absolute life counts, rated by the view) is migrated into Rules > Victory Rating automatically when the asset loads; absolute counts become count / Starting Lives. Save the asset once to store the migrated values.

Nesting depth: the deepest authoring chain (ability → rank → action → attack → damage → impact payload → region → pulse → damage) is 9 levels, inside Unity's serialization limit of 10. If you add your own nested [Serializable] data below that, reference a ScriptableObject instead of nesting another class.

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Scene components

Level Authoring (2D Tower Defense Maker/Level Authoring)

Field	Meaning
Level	Level asset providing waves, economy, towers, spells, heroes.
Paths	Path components in index order; empty = all child Path Authoring in hierarchy order.
Build Slots	Slot components in index order; empty = all child Build Slot Authoring.
Use Scene Geometry	Off = use the level asset's own Paths/Build Slots.

Buttons: Write Scene Geometry To Level Asset (copies paths and slots into the asset), Validate Bake, Open Wave Timeline.

Path Authoring (2D Tower Defense Maker/Path Authoring)

Field	Meaning
Points	Centre line in local space, entry → exit.
Lane Count / Lane Spacing	Parallel sub-lanes generated from the centre line. Lane 0 is on the left of the travel direction.
Entry Node / Exit Node	Where enemies appear / leak (−1 = last point).
Point Lane Spacing	Optional per-point spacing override (0 = default).
Air Route	Presentation only: Level View draws the path as a dotted flight line instead of a road and leaves it out of the ground texture. Use it for routes that only flying enemies take (assign them in the wave groups); the simulation treats it like any path.
Gizmo Color	Scene gizmo colour.

Editing shortcuts: Editor Tools.

Build Slot Authoring (2D Tower Defense Maker/Build Slot Authoring)

Field	Meaning
Rally Offset	Default barracks rally point, relative to the slot. The simulation projects it onto the nearest lane inside the tower's rally ellipse.
Preview Tower	Editor only: draws that tower's range and rally radius.
Preview Range	Editor only: range drawn when no preview tower is set.
Preview Range Y Scale	Y scale of the always-on gizmo.

Simulation Runner (2D Tower Defense Maker/Simulation Runner)

Field	Meaning
Scene Level	Level Authoring in the scene (preferred).
Level	Level asset used when no scene level is set.
Tick Rate	Ticks per second (default 30).
Range Y Scale	Default k (0.8) unless the level overrides it.
Spawn Heroes	Spawn the level's heroes at start.
Seed / Randomize Seed	Random seed; randomizing makes runs non-reproducible.
Time Scale	Game speed (0 = paused).
Catch Up Ticks Per Speed	Catch-up limit: at most this × speed ticks per rendered frame (default 8, via the core SimulationClock).
Start On Play	Start automatically; otherwise call StartSimulation().
Starting Gold Override	Debug: replaces the level's starting gold when 0 or more.
Capacities	Entity Capacity (1024), Event Capacity (8192 – events of one whole frame, see Performance), Command Capacity (128), Effect Capacity (4096), Area Capacity (256), Schedule Capacity (1024), Chain Capacity (64). See Performance.
Bodies	Remains Capacity (256; 0 keeps none) and Remains Lifetime (10 s): bodies of the fallen kept for raise actions (SimConfig.WithRemains, script: SetRemains). A full store keeps its old bodies.
Recording & Replay	Record Commands, Recording Capacity, Recording File, Replay On Start, Replay File (Determinism and Replay).

Scripting: see Presentation (Simulation, Baked, Enqueue, Advance, SetPaused, SetSpeed, AddTemplateDecorator, recording, events SimulationStarted and EventRaised).

Entity View Registry (2D Tower Defense Maker/Entity View Registry)

Runner (auto-found), Sprite Material (empty = unlit material created at runtime), Overrides (view key → prefab, overrides asset prefabs), Vfx Pool and Audio Player (auto-found), Prewarm Primitives, Death Fade Time, Splash Rings, fallback colours per role, the mechanic toggles Mechanic Arcs, Pulse Rings, Heal Glows, Trap Markers, Channel Beams, Reaction Lines, Transfer Color (path-transfer trails), and for mines, companions and revival Mine Flights, Remains Markers, Companion Color, Revive Color, Remains Color. Art set keys: a mine's id replaces its marker sprite, remains replaces the body marker.

Level View (2D Tower Defense Maker/Level View)

Placeholder level drawing: a generated ground (grass colours, Pixels Per Unit, Ground Margin, Decoration Density, Seed, Tint Camera Background), path/border/lane/slot/entry/exit colours, Path Padding, Slot Size, Show Lanes. Replace or disable it when you have real level art.

Game HUD and other presentation components

Game HUD, HUD Theme, Damage Numbers, VFX Pool, Audio Cue Player, Camera Controller, Game Settings and Ellipse Renderer are described in Presentation.

TD Hud (2D Tower Defense Maker/TD Hud)

Minimal IMGUI HUD kept as a code reference and, in the sample, as the F1 debug overlay of the Game HUD (Overlay Only). Fields: Runner, Registry, World Camera (empty = Camera.main), pick radii for slots and heroes, Reference Height for UI scaling, and preview colours.