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#

382 +0

14,120 +25

2,615 +4

GitHub
OpenRCT2 by OpenRCT2

An open source re-implementation of RollerCoaster Tycoon 2 🎢

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

C++

205 +0

12,889 +21

1,487 +6

GitHub
openage by SFTtech

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

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

Python

403 -1

12,376 +12

1,101 +2

GitHub
devilution by diasurgical

Diablo devolved - magic behind the 1996 computer game

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

C++

251 +0

8,633 -1

922 +1

GitHub
devilutionX by diasurgical

Diablo build for modern operating systems

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

C++

190 +0

7,533 +14

744 +1

GitHub
VVVVVV by TerryCavanagh

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

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

ActionScript

73 +0

6,816 +9

543 +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++

106 +1

5,911 +54

817 +2

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 +1

5,130 +4

923 +1

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

154 -1

4,935 +3

85 +0

GitHub
runelite by runelite

Open source Old School RuneScape client

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

Java

100 +0

4,573 +7

5,121 +5

GitHub
OpenLara by XProger

Classic Tomb Raider open-source engine

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

C

156 +0

4,558 +6

359 +1

GitHub
zelda3 by snesrev

None

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

C

93 +0

4,104 +5

343 -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 +2

3,898 +13

431 +2

GitHub
CorsixTH by CorsixTH

Open source clone of Theme Hospital

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

Lua

126 +0

3,848 +6

353 +1

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++

116 -1

3,034 +7

509 +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#

132 +0

2,554 +11

317 +1

GitHub
julius by bvschaik

An open source re-implementation of Caesar III

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

C

84 +0

2,552 +3

293 +1

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++

51 +0

2,518 +3

352 +0

GitHub
wipeout-rewrite by phoboslab

None

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

C

34 +0

2,499 +14

189 +0

GitHub
ioq3 by ioquake

The ioquake3 community effort to continue supporting/developing id's Quake III Arena

created at Dec. 31, 2012, 8:11 p.m.

C

131 +0

2,301 +6

516 +0

GitHub