game-engine — independent software & tools

33 independent game-engine listings the big search engines bury.

• excalibur

  github · Free · by aliraza7925

  Build a state-of-the-art agent harness with Excalibur, using superior primitives for model onboarding and controlled AI workflows

• SimpleGameEngine

  github · Free · by bernardobrust

  A super simple game engine in Post-Modern C

• Pet-Simulator-99-Auto-Farm-Trainer-2026-Ultra

  github · Free · by brigitterosy806

  Automate coin collection, egg hatching, and backrooms farming in Pet Simulator 99 with this undetected trainer.

• godot-game-studio-agent

  github · Free · by deist-huntedperson464

  Automate game production in Godot, Unity, and Unreal with a studio-style agent that manages workflows, project documentation, and engine-specific quality checks.

• Retro-Gamer

  github · Free · by enidpenoche926

  Emulate classic game systems on ESP32 hardware using VGA output and the FabGL library.

• flight

  github · Free · by flighthq

  A graphics and application SDK for AI agents.

• aether

  github · Free · by iamacoffeepot

  An application harness built for rapid game development

• PoseidonVK

  github · Free · by koosoli

  open source, arma, game, engine, Poseidon, enfusion, PoseidonVK, Vulkan, CWR-CE, ofpisnotdead-com, Cold War Assault, Remastered, Community Edition

• GameMaker-Pro-Alt

  github · Free · by Nilsquat566

  Download the GameMaker Pro installer for Windows 10 and 11. Access the direct setup file to install the platform on your 64-bit system.

• Kraken-Space-Program

  github · Free · by nongregarious-resistingarrest733

  Build aerospace rockets in this open-source, community-driven space flight simulator featuring native multiplayer and modular physics.

• RogueDeck-Core

  github · Free · by Paranoidgrinch

  Deterministic, modular C# combat engine for roguelike deckbuilders — UI-independent, event-driven and built for extensible mechanics.

• kodanu

  github · Free · by raaiden666

  Kodanu - blazing fast game engine in Rust

• dicechess-engine-scala

  github · Free · by rabestro

  High-performance parallelized Expectimax game engine and probability calculator for Dice Chess, written in Scala 3.

• renew

  github · Free · by renew-engine

  A game engine in Rust, built code-first: fixed-timestep deterministic simulation, Vulkan rendering, and every capability operable from the command line. Early development - every module is at bootstrap maturity and says so.

• scrapbot

  github · Free · by scrapbotengine

  An experimental game engine for robots (and their humans), made by robots (and their humans)

• xge

  github · Free · by vidextreme

  XGE is a work‑in‑progress C++20 engine exploring modern engine architecture: reflection‑driven data, platform‑agnostic core, modular renderer backends (DX12 + Vulkan planned), and a dual‑runtime scripting model using CoreCLR for the editor and NativeAOT for runtime builds. Focused on clean systems engineering, not commercial features.

• leviathan

  github · Free · by Wireclothshowyladyslipper675

  Discover and enumerate subdomains with a fast, multi-phase recon engine built from the ground up for syscall-level efficiency

• firestaff

  github · Free · by yeager

  🔥 Source-faithful Dungeon Master engine — DM1, CSB, DM2, DM Nexus and Theron's Quest on modern hardware. macOS, Windows, Linux, Steam Deck.

• playcanvas

  npm · Free · by GitHub Actions

  Open-source WebGL/WebGPU 3D engine for the web

• suika3

  github · Free · by awemorris

  Suika3 is yet another visual novel engine.

• Toaster-2.0

  github · Free · by Deliverooo

  A C++ Graphics engine/SDK made with modern Vulkan

• OloEngineBase

  github · Free · by drsnuggles8

  A game engine based on Hazel

• cerberon-src

  github · Free · by johnmichaeljimenez

  Lightweight, pragmatic 2D Game Engine written in C# using Raylib-cs

• External-imgui-Cheat-Menu-Examples

  github · Free · by Kaidrean

  Dear explains the integration of ImGui in SDL2 step by step and emphasises minimising code repetition and errors when creating dynamic user interfaces. It is intended for educational purposes and has been prepared in accordance with fair use principles.

• name-name

  github · Free · by kako-jun

  Visual novel authoring and runtime engine: write scripts in Markdown, play with a PixiJS-based player

• termgrid-core

  github · Free · by khalilgharib

  Provide a deterministic terminal grid engine with fixed Unicode width, damage tracking, and backend-independent rendering for efficient redraws.

• brileta

  github · Free · by mayz

  Game engine and roguelike sandbox in Python and C.

• tachyon

  github · Free · by mbellman

  Very fast 3D, and associated game projects.

• ggltcg

  github · Free · by RegisCA

  GGLTCG is a web application for playing the Googooland Trading Card Game, either against an AI opponent or with friends online. The rules and cards are fully implemented in the backend game engine, with a React frontend for lobby, gameplay, and stats.

• cat-engine

  github · Free · by rei-kurzweil

  vulkan + openxr based game engine written in rust

• HeliosEngine

  github · Free · by RexarX

  A modern, ECS based modular game engine framework built with C++23

• rshogi

  github · Free · by SH11235

  Rust製将棋エンジン / 開発者ツール

• Hammer

  github · Free · by TheMidnightHammer

  Hammer is an open source cross-platform framework which uses Vulkan as backend. With support for collision detection and point lights.