A downloadable game engine for Windows and Linux

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Open Surge is a fun 2D retro platformer inspired by Sonic games and a game creation system that lets you unleash your creativity!

About Open Surge

Open Surge is two projects in one: a game and a game creation system (game engine) with full scripting capabilities. It is released as free and open source software.

Open Surge is written from the ground up in C language, using the Allegro game programming library. The project has been started by Alexandre Martins, a developer from Brazil. Nowadays, Open Surge has contributors all over the world!

For more information, visit opensurge2d.org

How do I play?

You can play using a keyboard or a joystick.

Left CtrlSwitch character
Equals (=)Take snapshot
F12Open the editor

How do I create a game?

Use Open Surge to create your own amazing games! Create new levels, items, bosses, gameplay mechanics, playable characters, special abilities and more!

  • The first step is learning how to use the level editor (press F12 during gameplay)
  • Next, comes learning how to do basic hacking (modify the images/sounds, create new scenery, new characters, etc.)
  • Finally, have fun with scripting! SurgeScript, the scripting language featured in Open Surge, gives you ultimate power to create anything you desire and make your dreams come alive!

StatusIn development
PlatformsWindows, Linux
Rated 4.5 out of 5 stars
(14 total ratings)
GenrePlatformer, Action
Made withAllegro
TagsGame engine, GameMaker, Level Editor, Moddable, Open Source, Pixel Art, Retro, Side Scroller, sonic


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Click download now to get access to the following files:

Open Surge for Windows (v0.5.2.1) 36 MB
Flatpak for Linux (v0.5.2.1)
Snap for Linux (v0.5.2.1)
Source code (v0.5.2.1) 31 MB

Development log


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is there a way to make it non-pixel? i just kinda would like to make it hd or something like that

I don't believe that was the motive behind the game currently. But I could be wrong. I would look at some of the options in the menu or maybe runtime flags used for resolution.

Very cool game. A good take on a completely free and open Sonic the Hedgehog game!

this is amazing