1.OpenRA / OpenRA
Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Linux, *BSD and Mac OS X.
+251 stars
from 17,457 · score 5.53
Trending repositories
Ranked by Attention Score: stars gained over the last 30 complete days
34 repositories by Attention Score · Oct 4, 2026 – Nov 2, 2026 (UTC)
2.ssloy / tinyrenderer
A brief computer graphics / rendering course
+182 stars
from 24,304 · score 5.21
3.Kavex / GameDev-Resources
:video_game: :game_die: A wonderful list of Game Development resources.
+118 stars
from 7,013 · score 4.78
4.SFTtech / openage
Clone of the Age of Empires II engine 🚀
+117 stars
from 14,464 · score 4.77
5.iii-hq / iii
Effortlessly compose, extend, and observe every service in real-time for the first time ever.
+89 stars
from 18,787 · score 4.50
6.bkaradzic / bgfx
Cross-platform, graphics API agnostic, "Bring Your Own Engine/Framework" style rendering library.
+84 stars
from 17,517 · score 4.44
7.Taiizor / Sucrose
Sucrose is a versatile wallpaper engine that brings life to your desktop with a wide range of interactive wallpapers.
+51 stars
from 1,533 · score 3.95
8.unocss / unocss
The instant on-demand atomic CSS engine.
+35 stars
from 18,957 · score 3.58
9.OpenXRay / xray-16
Improved version of the X-Ray Engine, the game engine used in the world-famous S.T.A.L.K.E.R. game series by GSC Game World. Join OpenXRay! ;)
+34 stars
from 3,569 · score 3.56
10.expr-lang / expr
Expression language and expression evaluation for Go
+31 stars
from 8,032 · score 3.47
11.gameplay3d / gameplay
Open-source, cross-platform, C++ game engine for creating 2D/3D games.
+30 stars
from 4,924 · score 3.43
12.sofa-framework / sofa
Real-time multi-physics simulation with an emphasis on medical simulation.
+30 stars
from 1,265 · score 3.43
13.alyssaxuu / flowy
The minimal javascript library to create flowcharts ✨
+24 stars
from 12,125 · score 3.22
14.OpenDiablo2 / OpenDiablo2Archived
An open source re-implementation of Diablo 2
+20 stars
from 11,090 · score 3.04
15.gemrb / gemrb
GemRB is a portable open-source implementation of Bioware’s Infinity Engine.
+18 stars
from 1,249 · score 2.94
16.jarikomppa / soloud
Free, easy, portable audio engine for games
+14 stars
from 2,177 · score 2.71
17.htrgouvea / nipe
An engine to make Tor network your default gateway
+12 stars
from 2,393 · score 2.56
18.evennia / evennia
Python MUD/MUX/MUSH/MU* development system
+12 stars
from 2,105 · score 2.56
19.pay-rails / pay
Payments for Ruby on Rails apps
+11 stars
from 2,253 · score 2.48
20.urho3d / urho3dArchived
Game engine
+9 stars
from 4,770 · score 2.30
21.bludit / bludit
Simple, Fast, Secure, Flat-File CMS
+9 stars
from 1,464 · score 2.30
22.master-co / css
A markup-driven CSS orchestration language for developers and AI agents.
+6 stars
from 1,948 · score 1.95
23.ObEngine / ObEngine
2D Game Engine with Lua Scripting made on top of SFML !
+5 stars
from 863 · score 1.79
24.apache / linkis
Apache Linkis builds a computation middleware layer to facilitate connection, governance and orchestration between the upper applications and the underlying data engines.
+4 stars
from 3,412 · score 1.61
25.3dreamengine / 3DreamEngine
3DreamEngine is an *awesome* 3d engine for LÖVE.
+4 stars
from 506 · score 1.61
26.cg-tuwien / Auto-Vk-Toolkit
Getting serious about Vulkan development with this modern C++ framework, battle-tested in rapid prototyping, research, and teaching. Includes support for real-time ray tracing (RTX), serialization, and meshlets.
+2 stars
from 446 · score 1.10
27.bonitasoft / bonita-engine
Deploy, execute, manage process-based applications made with Bonita studio or through Engine APIs
+2 stars
from 176 · score 1.10
28.papercraftgames / folded-paper-engine
A custom Blender-to-Godot addon that makes level and gameplay creation as easy as a few clicks!
+2 stars
from 173 · score 1.10
29.BrokenGamesUG / delphi3d-engine
A 3D-graphic and game engine for Delphi and Windows.
+2 stars
from 84 · score 1.10
30.Colin4k1024 / AetherisArchived
Execution runtime for intelligent agents with event-sourced, recoverable task orchestration.
+2 stars
from 21 · score 1.10
31.gongminmin / KlayGE
KlayGE is a cross-platform open source game engine with plugin-based architecture.
+1 stars
from 2,174 · score 0.69
32.Zal0 / ZGB
Game Boy / Color engine with lots of features
+1 stars
from 791 · score 0.69
33.TrianglyRU / OrbinautFramework
Fast. Light. Powerful. Spin your own classic Sonic masterpiece!
+1 stars
from 129 · score 0.69
34.celestia-island / hikari
A Rust UI framework built on WASI.
+1 stars
from 24 · score 0.69