Developer Tools
Free game development tools that bridge your game to distribution platforms, streamline builds and boilerplate, improve playability across devices, and speed up content creation with AI.
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73 tools
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Steam Capsule Validator
Generate Steamworks-sized PNGs from one master image, ZIP export, safe-area inspector, and policy reminders.
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Steam Tag Recommender
Guided questionnaire to score and explain Steam tags for your game.
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Steam Sale & Fest Planner
Plan discount windows and export calendar reminders (heuristic).
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Epic Discover Carousel Packer
Desktop + mobile JPG pack, Arabic flipped desktop, safe-zone preview, video checklist.
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Unity Build Report Analyzer
Parse Unity build logs to find largest assets and quick wins.
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Unity 6 Upgrade Wizard
Version + pipeline + packages → ordered checklist with official Unity doc links and editorial notes.
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Unity Version Deep Compare & Visual Explorer
Pick two Unity versions: heuristic diff/risk scores, subsystem heatmap, impact bars, package table, official doc links, shareable URL.
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Unity AI Capability Mapper
Goal → Assistant / Generators / Sentis + docs; editable prompt templates for sprites, icons, textures.
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Unity Manifest Inspector
Inspect manifest.json, classify sources, and visualize dependencies.
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Unity Profiler Diff
Compare two profiler snapshots and rank regressions.
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Unity Memory Budget Calculator
Estimate memory pressure vs device-class budgets.
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Render Pipeline Compatibility
Guided Built-in / URP / HDRP compatibility checklist.
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AI Material Prompt Builder
Compose prompts for game-ready PBR materials and variants.
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AGENTS.md Generator for Unity & Unreal
Engine, features, platforms, genre → AGENTS.md plus CLAUDE.md, Cursor and Copilot rules.
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AI Cost Planner for Games
LLM NPCs, voice, assets, coding agents, localization → monthly cost per DAU.
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Game Development Prompt Library
120+ prompts for design, code, art, audio, marketing and NPC AI: search, fill, copy.
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Game Development Stack Builder
Team, budget, genre, platforms → engine, tools and services with costs and alternatives.
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Steam Wishlist-to-Revenue Estimator
Scenario planner: wishlists, price, conversion bands, fees, refunds — charts and CSV.
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Feature Priority Matrix
Score features by value, effort, risk, marketing, launch need — quadrants and exports.
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Achievement Planner & Coverage Mapper
Genre templates, coverage heatmap, grind/spoiler warnings, localization CSV.
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QA Test Plan Builder
Genre, platforms, and release stage → grouped checklists, severity, Markdown export.
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Accessibility Readiness Checker
Guided checklist with category scores, gaps, and an improvement action plan export.
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Game Economy & Reward Balance Calculator
Soft currency pacing, upgrades, sinks — charts, imbalance warnings, CSV worksheet.
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Steam Page Conversion Readiness Checker
Store page rubric by stage: grades, must-fix list, printable optimization checklist.
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Input Rebinding Conflict Checker
Parse Unity Input Actions JSON (or a manual matrix) for duplicate paths, collisions, and gaps.
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Input Binding Persistence Generator
Wizard: JSON / PlayerPrefs / file → persistence blueprint, schema, and C#-style starter snippets.
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Controller Glyph Mapper & Prompt Previewer
Map actions to Xbox / PlayStation / Switch / generic glyphs; export CSV / JSON prompt keys.
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Steam Input IGA / VDF Builder
Define action sets and digital/analog actions → starter VDF-style KeyValues + naming checklist.
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Input Hot-Swap State Tester
Model keyboard ↔ gamepad switching, debounce, disconnect — state notes and Mermaid diagram export.
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Steam Deck UX & Readiness Checker
Questionnaire against Deck guidance: readability, launcher, gamepad-first, resolution — scored report.
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Steam Cloud Auto-Cloud Path Builder
Map save roots to Auto-Cloud rules per OS; warnings and Steamworks setup checklist.
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Build Variant Matrix Planner
Storefronts × OS × demo/beta/internal → matrix, branch names, and artifact slug suggestions.
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SteamPipe VDF Builder & Upload Dry-Run
App and depot build VDF templates plus field validation and upload checklist.
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Player.log & Crash Triage Parser
Paste a log → bucketed findings (graphics, Steam, plugins, saves...), optional path redaction.
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Shutdown & Lingering Process Diagnostic
Steam still shows Running after quit? Subprocess, SteamAPI_Shutdown, and quit-order checklist — Markdown export.
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RestartAppIfNecessary Bootstrap Generator
Wrapper-aware bootstrap order, C# starter snippets, dual-store notes, and QA relaunch checklist.
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Steam Callback Pump Scaffold Generator
RunCallbacks placement for client/server, threading notes, feature matrix, regression checklist.
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Rich Presence Publish & Cache Checklist
Partner publish vs client cache vs branches — rollout and QA handoff for ‘code works but Steam doesn’t show it’.
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Steam Inventory Schema Draft Builder
Categories, tradability, bundles/consumables — draft itemdef-oriented JSON + policy warnings.
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Workshop Upload Error Explainer
InvalidParam and common codes — ranked causes, path checks, legal/preview metadata checklist.
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Steam Relay vs Unity Relay Decision Helper
Storefronts, concurrency, cross-store, cost — scored recommendation and phased migration.
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Unity Screen Flow Scaffolder
Menus/HUD presets → flow diagram, screens.json, UXML or UGUI notes, UIScreenRouter stub — export bundle.
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Settings Menu & Persistence Generator
Categories, PlayerPrefs/JSON/SO — schema, keys registry, storage stub, migration notes, UXML outline.
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UI Toolkit Runtime Binding Scaffolder
Field list → ViewModel, Binder, UXML placeholders, BindingNotes.md for Unity 6 runtime binding.
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Animation Event Bus & Marker Scaffold
Footsteps, hit frames, VFX... → AnimationEventId enum, bus + receiver stubs, marker naming guide.
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Dialogue Graph Bootstrap Generator
VN/RPG/barks → dialogue-schema.json, C# node/runner stubs, sample YAML, localization key plan.
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Unity Project Template & Folder Convention Generator
Game type, repo, UI stack → FolderTree.txt, CONVENTIONS.md, .gitignore starter, packages list.
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Unity CI/CD Pipeline Generator
GitHub Actions, GitLab, Jenkins, Azure Pipelines, CircleCI, Bitbucket — per-host YAML, matrix targets, cache & secrets notes.
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Steam AI Disclosure Draft Builder
Content Survey categories → disclosure draft, evidence CSV, legal review checklist — Markdown export.
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UI Flow + Screen Generator (UI Toolkit / uGUI)
Screen-flow JSON, UXML/USS skeleton, ViewModel stub, localization keys — export bundle.
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GameDev Calculator Hub
Vectors, quaternions, color conversions, MIME sniff, harmony palettes — one page.
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Latency Impact Visualizer
RTT vs tick rate: hit windows, extrapolation fudge, perceived lag hints.
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Game Character Name Generator
Themes and syllable shapes — batches with fantasy/sci‑fi presets.
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Unity Force & Jump Calculator
Mass, gravity, jump height → AddForce impulse and tuning notes.
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Unity FOV Visualizer
Horizontal FOV, aspect, distance — simple frustum preview sketch.
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Unity Build Size Estimator
Platform presets × texture audio code weights — rough MB breakdown.
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Free Game Maker Finder
Score free engines and no-code tools by your weighted criteria.
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Game Development Language Finder
Answer a few goals → ranked languages with tradeoffs.
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Game Engine Selector
Weighted quiz: 2D/3D, team size, targets → engine shortlist.
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Cloud Gaming Cost Estimator
Concurrent players, hours, instance class → monthly ballpark.
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Game Development Cost Calculator
Roles × rates × duration + overhead — budget range table.
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Game Mechanics Calculator
Damage, XP to level, cooldowns — formula playground with exports.
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GPU ROI Calculator
Local GPU vs cloud hourly — break-even hours and rough TCO.
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Unity Asset Analyzer (manual)
Paste sizes or CSV — rank assets, flags by type, cleanup hints.
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Stable Diffusion Time Estimator
Steps, resolution, batch, it/s guess — wall-clock and throughput.
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RL Reward Calculator (lite)
Sparse/dense/shaping terms → combined reward trace over toy episode.
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Diffusion Loss Calculator (lite)
Simple MSE / signal-noise toy loss from numeric inputs.
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Noise Augmentation Effect Calculator
Gaussian noise sigma vs baseline accuracy — toy sensitivity curve.
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Denoising Efficiency Calculator
Latency vs PSNR uplift — compare two denoiser presets heuristically.
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Generative Frame Prediction (lite)
Two-frame difference energy → proxy error for temporal experiments.
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View SVG Online
Paste or open SVG — preview, minify-ish view, attribute grep.
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Game Asset Image Compressor
Re-encode uploads in-browser (JPEG/WebP quality) — before/after size.
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Unreal Engine Version Converter (cheat sheet)
UE5.x line notes, plugin and path checks when moving projects.