OpenRA by 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.

created at Oct. 4, 2010, 7:38 a.m.

C#

380 +0

14,814 +17

2,691 -1

GitHub
OpenRCT2 by OpenRCT2

An open source re-implementation of RollerCoaster Tycoon 2 🎢

created at April 1, 2014, 11:32 p.m.

C++

203 +0

13,624 +36

1,564 +3

GitHub
openage by SFTtech

Free (as in freedom) open source clone of the Age of Empires II engine 🚀

created at Nov. 3, 2013, 10:35 p.m.

Python

399 +0

12,805 +6

1,127 +0

GitHub
devilution by diasurgical

Diablo devolved - magic behind the 1996 computer game

created at April 2, 2018, 1:01 a.m.

C++

247 +0

8,807 +6

920 +0

GitHub
devilutionX by diasurgical

Diablo build for modern operating systems

created at Aug. 2, 2018, 5:19 p.m.

C++

197 +0

8,149 +12

802 +2

GitHub
VVVVVV by TerryCavanagh

The source code to VVVVVV! http://thelettervsixtim.es/

created at Oct. 16, 2015, 6:17 p.m.

ActionScript

72 +0

7,025 +7

558 +0

GitHub
OpenTTD by OpenTTD

OpenTTD is an open source simulation game based upon Transport Tycoon Deluxe

created at April 6, 2018, 6:06 p.m.

C++

111 +0

6,445 +20

899 +3

GitHub
openmw by OpenMW

OpenMW is an open-source open-world RPG game engine that supports playing Morrowind. Main repo and issue tracker can be found here: https://gitlab.com/OpenMW/openmw/

created at Aug. 23, 2009, 2:46 p.m.

C++

272 +0

5,430 +13

939 +2

GitHub
OpenSC2K by nicholas-ochoa

OpenSC2K - An Open Source remake of Sim City 2000 by Maxis

created at Feb. 3, 2018, 2:38 a.m.

JavaScript

152 +0

4,988 +1

90 +0

GitHub
runelite by runelite

Open source Old School RuneScape client

created at April 30, 2016, 8:48 p.m.

Java

98 +1

4,842 +6

5,258 +4

GitHub
OpenLara by XProger

Classic Tomb Raider open-source engine

created at Aug. 13, 2016, 10:06 p.m.

C

160 +0

4,712 +2

365 +1

GitHub
vcmi by vcmi

Open-source engine for Heroes of Might and Magic III

created at April 6, 2014, 1:42 p.m.

C++

123 +0

4,594 +8

495 +0

GitHub
zelda3 by snesrev

None

created at Aug. 11, 2022, 1:11 a.m.

C

92 +0

4,294 +6

358 -1

GitHub
CorsixTH by CorsixTH

Open source clone of Theme Hospital

created at Aug. 25, 2013, 6:16 p.m.

Lua

124 +1

4,063 +4

369 +0

GitHub
warzone2100 by Warzone2100

Command the forces of The Project in a battle to rebuild the world after mankind has been nearly destroyed by nuclear missiles. A 100% free and open source real-time strategy game for Windows, macOS, Linux, BSD+

created at Nov. 16, 2010, 4:36 a.m.

C++

115 +0

3,240 +2

535 +1

GitHub
julius by bvschaik

An open source re-implementation of Caesar III

created at Aug. 19, 2017, 8:48 p.m.

C

84 -1

2,865 +11

319 +3

GitHub
fheroes2 by ihhub

fheroes2 is a recreation of Heroes of Might and Magic II game engine.

created at Aug. 30, 2019, 3:05 p.m.

C++

50 +0

2,790 +10

382 +1

GitHub
daggerfall-unity by Interkarma

Open source recreation of Daggerfall in the Unity engine

created at Jan. 6, 2015, 9:18 p.m.

C#

135 -1

2,772 +9

333 +0

GitHub
space-station-14 by space-wizards

A multiplayer game about paranoia and chaos on a space station. Remake of the cult-classic Space Station 13.

created at May 22, 2017, 1:57 a.m.

C#

57 +2

2,765 +13

3,549 +28

GitHub
wipeout-rewrite by phoboslab

None

created at Aug. 10, 2023, 11:14 a.m.

C

42 +0

2,670 +5

216 +1

GitHub