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game-art

Design
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Game art principles.

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Source SKILL.md: https://github.com/Dokhacgiakhoa/Agent-skills-setup-for-AntiGravity/blob/HEAD/.agent/skills/game-development/game-art/SKILL.md

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Game Art Principles

Visual design thinking for games - style selection, asset pipelines, and art direction.


1. Art Style Selection

Decision Tree

What feeling should the game evoke?
│
├── Nostalgic / Retro
│   ├── Limited palette? → Pixel Art
│   └── Hand-drawn feel? → Vector / Flash style
│
├── Realistic / Immersive
│   ├── High budget? → PBR 3D
│   └── Stylized realism? → Hand-painted textures
│
├── Approachable / Casual
│   ├── Clean shapes? → Flat / Minimalist
│   └── Soft feel? → Gradient / Soft shadows
│
└── Unique / Experimental
    └── Define custom style guide

Style Comparison Matrix

StyleProduction SpeedSkill FloorScalabilityBest For
Pixel ArtMediumMediumHard to hireIndie, retro
Vector/FlatFastLowEasyMobile, casual
Hand-paintedSlowHighMediumFantasy, stylized
PBR 3DSlowHighAAA pipelineRealistic games
Low-polyFastMediumEasyIndie 3D
Cel-shadedMediumMediumMediumAnime, cartoon

2. Asset Pipeline Decisions

2D Pipeline

PhaseTool OptionsOutput
ConceptPaper, Procreate, PhotoshopReference sheet
CreationAseprite, Photoshop, KritaIndividual sprites
AtlasTexturePacker, AsepriteSpritesheet
AnimationSpine, DragonBones, Frame-by-frameAnimation data
IntegrationEngine importGame-ready assets

3D Pipeline

PhaseTool OptionsOutput
Concept2D art, BlockoutReference
ModelingBlender, Maya, 3ds MaxHigh-poly mesh
RetopologyBlender, ZBrushGame-ready mesh
UV/TexturingSubstance Painter, BlenderTexture maps
RiggingBlender, MayaSkeletal rig
AnimationBlender, Maya, MixamoAnimation clips
ExportFBX, glTFEngine-ready

3. Color Theory Decisions

Palette Selection

GoalStrategyExample
HarmonyComplementary or analogousNature games
ContrastHigh saturation differencesAction games
MoodWarm/cool temperatureHorror, cozy
ReadabilityValue contrast over hueGameplay clarity

Color Principles

  • Hierarchy: Important elements should pop
  • Consistency: Same object = same color family
  • Context: Colors read differently on backgrounds
  • Accessibility: Don't rely only on color

4. Animation Principles

The 12 Principles (Applied to Games)

PrincipleGame Application
Squash & StretchJump arcs, impacts
AnticipationWind-up before attack
StagingClear silhouettes
Follow-throughHair, capes after movement
Slow in/outEasing on transitions
ArcsNatural movement paths
Secondary ActionBreathing, blinking
TimingFrame count = weight/speed
ExaggerationReadable from distance
AppealMemorable design

Frame Count Guidelines

Action TypeTypical FramesFeel
Idle breathing4-8Subtle
Walk cycle6-12Smooth
Run cycle4-8Energetic
Attack3-6Snappy
Death8-16Dramatic

5. Resolution & Scale Decisions

2D Resolution by Platform

PlatformBase ResolutionSprite Scale
Mobile1080p64-128px characters
Desktop1080p-4K128-256px characters
Pixel art320x180 to 640x36016-32px characters

Consistency Rule

Choose a base unit and stick to it:

  • Pixel art: Work at 1x, scale up (never down)
  • HD art: Define DPI, maintain ratio
  • 3D: 1 unit = 1 meter (industry standard)

6. Asset Organization

Naming Convention

[type]_[object]_[variant]_[state].[ext]

Examples:
spr_player_idle_01.png
tex_stone_wall_normal.png
mesh_tree_oak_lod2.fbx

Folder Structure Principle

assets/
├── characters/
│   ├── player/
│   └── enemies/
├── environment/
│   ├── props/
│   └── tiles/
├── ui/
├── effects/
└── audio/

7. Anti-Patterns

Don'tDo
Mix art styles randomlyDefine and follow style guide
Work at final resolution onlyCreate at source resolution
Ignore silhouette readabilityTest at gameplay distance
Over-detail backgroundFocus detail on player area
Skip color testingTest on target display

Remember: Art serves gameplay. If it doesn't help the player, it's decoration.