gamestack

In the author's own words, from each skill's SKILL.md.

• 3d-graphics-and-rendering

  Use when designing, choosing, or reviewing the rendering layer of any real-time 3D (or 2D-with-lighting) game — the rasterization pipeline, PBR vs stylized/NPR materials, the forward/deferred/forward+ lighting architecture, global-illumination and shadow choices, culling/LOD/draw-call/overdraw performance budgets, and the post-processing chain (tonemapping, bloom, AO, anti-aliasing). Also use to…

  plugins/gamestack/skills/3d-graphics-and-rendering/SKILL.md on GitHub (opens in a new tab)

• ai-authored-content-coherence

  Use when keeping AI-authored or procedurally-generated content coherent at scale — single voice across a corpus, a machine-readable lore bible with a "never violate" list, generate-then-rationalize causation, recurring thematic domains so generated figures cohere into arcs, the oatmeal/sameness problem, and the self-review pass that flags drift and duplication. The crux skill for headless / AI-au…

  plugins/gamestack/skills/ai-authored-content-coherence/SKILL.md on GitHub (opens in a new tab)

• animation-systems

  Use when designing, speccing, or reviewing a character/object motion system in ANY engine — the rig and skeleton, skinning (linear blend vs dual-quaternion, the candy-wrapper artifact), forward vs inverse kinematics, IK solvers (two-bone, FABRIK, CCD, look-at), blend trees and blend spaces (1D/2D), animation state machines, additive layers and upper/lower-body splits, ragdoll and active ragdoll,…

  plugins/gamestack/skills/animation-systems/SKILL.md on GitHub (opens in a new tab)

• art-direction-and-readability

  Use when making design-level (not asset-production) decisions about how a game looks and reads — readability vs. fidelity, silhouette design, value/contrast as eye-direction, reserved signal colors, visual-language consistency, and how an AI engine keeps a coherent house style across generated content. Triggers on "art direction", "readability", "silhouette", "signal color", "yellow paint", "visu…

  plugins/gamestack/skills/art-direction-and-readability/SKILL.md on GitHub (opens in a new tab)

• combat-design

  Use when designing, tuning, or reviewing combat and game feel — juice/feedback budgets, hit-stop and impact, telegraphing and danger cues, enemy silhouettes and role-based rosters, multi-enemy readability, encounter pacing, and high-lethality (Souls-like) commitment/stamina/checkpoint loops. Also use to diagnose combat that feels floaty, noisy, unfair, swarmy, or like a memorization "knowledge ch…

  plugins/gamestack/skills/combat-design/SKILL.md on GitHub (opens in a new tab)

• difficulty-and-balancing

  Use when designing, tuning, or reviewing the difficulty or balance of any game system — encounter tuning, cost curves, dominant-strategy audits, dynamic difficulty adjustment (DDA), difficulty settings, and accessibility assists. Also use to diagnose "this is too hard/too easy", "everything feels overpowered", a degenerate meta, a missing difficulty curve, or an accessibility gap. Triggers on "ba…

  plugins/gamestack/skills/difficulty-and-balancing/SKILL.md on GitHub (opens in a new tab)

• engine-router

  The platform router for the gamestack framework. Use when a game's design is ready to implement, when the target engine is chosen or needs choosing, or when handing off a spec to engine code — "build this in Godot/Unity/Unreal/Three.js", "which engine", "now implement it", "wire the design to code". Routes design phases to gamestack's foundation skills and implementation to the matching engine pa…

  plugins/gamestack/skills/engine-router/SKILL.md on GitHub (opens in a new tab)

• game-design-fundamentals

  The foundational design discipline — the spine the rest of the pack cross-links to. Use when judging whether a mechanic is fun, auditing a system for balance, designing difficulty/flow, setting reward schedules, checking player motivation, or diagnosing "my choices don't matter" / "this is grindy" / "this difficulty spike feels cheap". Covers interesting decisions (Sid Meier), flow & difficulty c…

  plugins/gamestack/skills/game-design-fundamentals/SKILL.md on GitHub (opens in a new tab)

• game-design-process

  The orchestrator for designing a game end to end. Use when starting or steering a game's design — "I'm making a game", "where do I start", "design this game with me", "what's next in the design", or running headless to take a concept to generated, reviewed content. Engine-agnostic; tuned for procedural / AI-authored games (e.g. a procgen open-world RPG in Godot). Sequences the pipeline and names…

  plugins/gamestack/skills/game-design-process/SKILL.md on GitHub (opens in a new tab)

• game-feel-and-juice

  Use when designing, tuning, or reviewing the moment-to-moment feel of ANY action in ANY genre — responsiveness, input latency, forgiveness windows (coyote time, input buffering), the juice toolkit (hit-stop, screen shake, squash/stretch, particles, easing, sound layering), the 12 animation principles, camera feel, and UI/menu feel. Also use to diagnose controls that feel floaty, laggy, mushy, wei…

  plugins/gamestack/skills/game-feel-and-juice/SKILL.md on GitHub (opens in a new tab)

• gamestack-upgrade

  Check whether the installed gamestack plugin is behind the marketplace's latest version and update it in place. Use when asked to "upgrade gamestack", "update gamestack", "check for gamestack updates", "is gamestack up to date", "auto update the plugin", "gamestack upgrade", or "what's new in gamestack". Pure plugin-maintenance utility — no design bible, no engine detection, nothing game-specific.

  plugins/gamestack/skills/gamestack-upgrade/SKILL.md on GitHub (opens in a new tab)

• iteration-loop

  Use when bringing any system — visual (terrain/biome/dungeon/town/castle/character/enemy/NPC/spell-fx), systemic (balance/economy/difficulty), or narrative (lore/quests) — up to fidelity with its intended target through repeated cycles, in any engine. Covers the generic Reference → Diff → Prioritize → Generate/Implement → Verify loop, a preview-harness pattern for screenshotting/inspecting a syst…

  plugins/gamestack/skills/iteration-loop/SKILL.md on GitHub (opens in a new tab)

• level-design

  Use when designing, generating, or reviewing the craft of an individual level, zone, or encounter — layout, wayfinding, structural type, lock-and-key gating, antepieces, arena design, in-level pacing, and the greybox process. Also use to diagnose levels where players get lost, challenge feels unfair, pacing drags, or teaching moments land flat. Triggers on "level design", "level layout", "greybox…

  plugins/gamestack/skills/level-design/SKILL.md on GitHub (opens in a new tab)

• narrative-and-quest-design

  Use when designing quests, reactivity, and factions — quest structure beyond fetch-and-return, branching that honors player choice, reactivity systems on a budget (the "facts database"), procedural/radiant quests as a supplement to hand-authored ones, and faction allegiance dilemmas. Also use to diagnose quests that feel like filler or a world that ignores what the player did. Triggers on "quest…

  plugins/gamestack/skills/narrative-and-quest-design/SKILL.md on GitHub (opens in a new tab)

• onboarding-and-teaching

  Use when designing, reviewing, or generating the introduction to ANY mechanic in ANY genre — the four-beat teaching pattern (introduce→test→combine→twist), show-don't-tell level design, progressive disclosure and scaffolding, the mechanic dependency graph, FTUE (first-time user experience), early retention funnels, and the skill-atom ramp. Also use to diagnose tutorials that are too long, that pl…

  plugins/gamestack/skills/onboarding-and-teaching/SKILL.md on GitHub (opens in a new tab)

• open-world-design

  Use when designing, generating, or reviewing the spatial side of an open world — macro-layout and terrain, landmarks and sightlines, biome identity, verticality, navigation/wayfinding, signal color, exploration pull, and spatial pacing (the wonder→fear gradient, tension/release). Also use to diagnose a world that feels empty, samey, or like marker-following "icon vomit". Triggers on "open world",…

  plugins/gamestack/skills/open-world-design/SKILL.md on GitHub (opens in a new tab)

• pacing-and-the-player-journey

  Use when designing, auditing, or generating the macro arc of an experience — how engagement rises and falls across an encounter, a session, a level, and an entire playthrough. Covers the interest curve and fractal pacing, tension/rest rhythm, novelty cadence and mid-game sag, nested engagement loops and retention ethics, first-hour pacing by genre, and the procedural pacing director algorithm. Tr…

  plugins/gamestack/skills/pacing-and-the-player-journey/SKILL.md on GitHub (opens in a new tab)

• permadeath-and-lethality

  Use when designing high-lethality / permadeath / single-save combat and the systems around it — making death fair and readable, mitigating the cost of failure without removing stakes (short runs, opt-in difficulty, deterministic anti-save-scum), meta-progression and diegetically-integrated death (roguelike vs. roguelite), and the hard open problem of single-save permadeath in a long-form open wor…

  plugins/gamestack/skills/permadeath-and-lethality/SKILL.md on GitHub (opens in a new tab)

• procedural-generation

  Use when designing or building a content generator — terrain, dungeons, quests, items, lore, history — or diagnosing generated content that feels samey, generic, or soulless. Covers the "10,000 bowls of oatmeal" problem, perceptual vs. mathematical uniqueness, the handcrafted-anchor + constrained-fill hybrid, voice-consistent corpora, multiplicative systems, and tying generation to meaning. Core…

  plugins/gamestack/skills/procedural-generation/SKILL.md on GitHub (opens in a new tab)

• procedural-geometry

  Use when generating or reviewing the GEOMETRY of a game — procedural terrain, meshes, structures, and scatter. Covers noise as the substrate (Perlin/Simplex/value noise, fractal Brownian motion, domain warping), terrain generation (heightfield vs voxel/SDF, marching cubes, dual contouring, hydraulic/thermal erosion, LOD/chunking), structural generation (L-systems, shape grammars, wave function co…

  plugins/gamestack/skills/procedural-geometry/SKILL.md on GitHub (opens in a new tab)

• procgen-review

  Run this to review a batch of procedurally- or AI-generated game content (dungeons, regions, quests, items, NPCs, lore, history) before it's committed. Stands in for the human designer's eye in a headless generation loop. Runs the oatmeal test (perceptual sameness), the fanfic/retell test (is it worth retelling), a cross-instance sameness scan (structural/thematic duplication), an intentionality…

  plugins/gamestack/skills/procgen-review/SKILL.md on GitHub (opens in a new tab)

• rpg-systems

  Use when designing, tuning, or reviewing the core RPG systems triad — character progression (leveling, skills, attributes, classless vs. class), the economy (currencies, faucets/sinks, crafting materials), and loot & itemization (rarity tiers, drop rates, legendary/unique design). Also use to diagnose "leveling feels pointless", "the world scales with me", "players hoard their best items", "every…

  plugins/gamestack/skills/rpg-systems/SKILL.md on GitHub (opens in a new tab)

• shaders-and-vfx

  Use when authoring shaders/materials or building visual effects in ANY engine — the shader model (vertex/fragment/compute, what each reads and writes), node-graph material thinking, procedural texturing (noise, SDFs, triplanar, vertex-color/splat masks) vs. baked textures, the VFX toolkit (CPU vs GPU particles, trails/ribbons, decals, distortion/refraction, dissolve/hit-flash/rim effects), styliz…

  plugins/gamestack/skills/shaders-and-vfx/SKILL.md on GitHub (opens in a new tab)

• systemic-emergent-design

  Use when designing, auditing, or generating the systemic substrate of a game — the small set of consistent, interacting rules (a "chemistry engine") that produce emergent play, rather than scripted set-pieces. Covers immersive-sim principles (intention & perceivable consequence), multiplicative vs. additive design, the "tabletop RPG with a good GM" analogy, and how emergent systems make procedura…

  plugins/gamestack/skills/systemic-emergent-design/SKILL.md on GitHub (opens in a new tab)

• ui-ux-and-feedback

  Use when designing, auditing, or generating a HUD, menu system, or feedback vocabulary for any genre — information hierarchy, diegetic vs. non-diegetic classification, cognitive load budgeting, feedback channel design, menu flow, input modality, and accessibility. Also use to diagnose a UI that is cluttered, that players ignore, that confuses state, or where players miss critical information. Tri…

  plugins/gamestack/skills/ui-ux-and-feedback/SKILL.md on GitHub (opens in a new tab)

• worldbuilding-and-lore

  Use when building a world bible and deciding how lore reaches the player — the iceberg principle (author the whole world, surface ~10%), environmental & item-description storytelling, an "alien but coherent" identity that survives procedural generation, deep history as faction-proxy pantheons, and ludonarrative harmony (mechanics that are the story). Also use to diagnose lore that info-dumps, fee…

  plugins/gamestack/skills/worldbuilding-and-lore/SKILL.md on GitHub (opens in a new tab)

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