OpenRocket alternatives

12 Windows apps in the same category as OpenRocket, ranked by what they have in common and by popularity.

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  OpenTTD

  OpenTTD is a transport simulation game based upon the popular game Transport Tycoon Deluxe, written by Chris Sawyer. It attempts to mimic the original game as closely as possible while extending it with new features.

  Open source 15.3 31.6K ↓ ★ 8.4K simulation
• 
  RetroArch

  RetroArch is a frontend for emulators, game engines and media players.

  Open source 1.22.2 76.1K ↓ ★ 14.4K
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  Celestia

  Real-time 3D visualization of space. The free space simulation that lets you explore our universe in three dimensions.

  Open source 1.6.4 13.6K ↓ ★ 2.4K simulation, foss
• 
  Steam

  Steam is the ultimate destination for playing, discussing, and creating games.

  Proprietary 2.10.91.91 766.7K ↓
• 
  PPSSPP

  PPSSPP can run your PSP games on your PC in full HD resolution; it can even upscale textures that would otherwise be too blurry as they were made for the small screen of the original PSP.

  Open source 1.20.4 14.6K ↓ ★ 14.7K
• 
  ScummVM

  ScummVM is a program which allows you to run certain classic graphical adventure and role-playing games, provided you already have their data files.

  Open source 2026.4.0 9K ↓ ★ 2.9K
• 
  MAME

  A multi-purpose emulation framework. Its purpose is to preserve decades of software history. As electronic technology continues to rush forward, MAME prevents this important «vintage» software from being lost and forgotten.

  Open source 0.289 10.9K ↓ ★ 10.7K
• 
  SuperTuxKart

  Arcade 3D racer with a variety of characters, tracks and modes

  Open source 1.5 7.8K ↓ ★ 5.4K foss
• 
  Playnite

  Playnite is an open source video game library manager with one simple goal: To provide a unified interface for all of your games.

  Open source 10.58 89.3K ↓ ★ 14.3K
• 
  Warzone 2100

  Warzone 2100, released in 1999 and developed by Pumpkin Studios, was a ground-breaking and innovative 3D real-time strategy game.

  Open source 4.7.0 2.9K ↓ ★ 4K foss, embedded
• 
  Stockfish

  A free and strong UCI chess engine.

  Open source 19.0 608 ↓ ★ 17K
• 
  Dolphin

  Dolphin emulates the Nintendo GameCube and Nintendo Wii on your PC.

  Open source 5.0 397.9K ↓ ★ 15.7K

Comparison

App	Licence	Version	Updated	GitHub stars	Chocolatey downloads
OpenRocket	Open source	23.09	January 29, 2024	3.2K	452
OpenTTD	Open source	15.3	April 5, 2026	8.4K	31.6K
RetroArch	Open source	1.22.2	December 3, 2025	14.4K	76.1K
Celestia	Open source	1.6.4	November 10, 2023	2.4K	13.6K
Steam	Proprietary	2.10.91.91	March 30, 2021	—	766.7K
PPSSPP	Open source	1.20.4	July 12, 2026	14.7K	14.6K
ScummVM	Open source	2026.4.0	October 11, 2026	2.9K	9K
MAME	Open source	0.289	July 31, 2026	10.7K	10.9K
SuperTuxKart	Open source	1.5	November 6, 2025	5.4K	7.8K
Playnite	Open source	10.58	September 11, 2026	14.3K	89.3K
Warzone 2100	Open source	4.7.0	May 15, 2026	4K	2.9K
Stockfish	Open source	19.0	September 6, 2026	17K	608
Dolphin	Open source	5.0	August 3, 2021	15.7K	397.9K