VVVVVV VS AmnesiaTheDarkDescent

*The Monkey's Paw curls* https://github.com/TerryCavanagh/VVVVVV

VVVVVV at least has since become open source.

VVVVVV - A platformer where you flip gravity instead of jumping. Was recently open-sourced to celebrate the game's 10th anniversary!

Yeah, just look at this beauty! https://github.com/TerryCavanagh/VVVVVV/blob/master/desktop_version/src/Game.cpp

Finally, games are really that complex. Check out for example Terry Cavanagh's blog post on releasing the source code for VVVVVV, and check out the source for Game.cpp (although keep in mind this was ported from ActionScript).

So it seems to be an unofficial policy rather than a written rule, if those allegations are true (remember that those are Wolfire's claims of what Valve said). Certainly there doesn't seem to be consistent enforcement - for instance Tales of Maj'Eyal is free, but $7 on Steam. Apparently there are some minor differences - does that mean that they can claim that it's a "separate version" and hence doesn't need price parity, even though 99.9% of the game is identical? There's also VVVVVV, which is open source (albeit years after initial commercial release) where you can freely build the exact same copy as on Steam ($5), including steamworks support. Does that count as a "separate version" when you just have to compile code? Admittedly these are two indie games, albeit extremely well-known ones, but then - isn't Wolfire Games also an indie studio?

I think it's worth noting VVVVVV has actually been open-sourced https://github.com/TerryCavanagh/VVVVVV

Looks like the source code is publicly available: https://github.com/FrictionalGames/AmnesiaTheDarkDescent and the Sclerosis (this port) developers are preventing the game from being distributed anywhere: https://createam.itch.io/sclerosis " P.S.: Frictional Games prohibited anywhere to distribute my remake, so I'm posting the full version for free without any restrictions on my itch.io in the hope that soon the game will appear on all kinds of forums and sites, after which I will probably hide the game from there. Version v1.7 will remain the final version for Sclerosis: The Dark Descent. "

This curiosity grew even more when I downloaded Amnesia source code and saw in there LOTS of Pointers, but I have no idea what I'm looking at (just yet, I hope).

Here is the source code to amnesia the dark descent https://github.com/FrictionalGames/AmnesiaTheDarkDescent crazy how that exists when you say it can't exist

The game engine that runs Amnesia was written by 2 guys, uses OpenGL (which is a hell to begin with, especially on different hardware) and does use some quite advanced shading stuff for its low complexity. They released the code btw. if anyone is interested.

As for Amnesia it's a similar story; They're using their own in-house engine which does itself use SDL. FrictionalGames recently open sourced Amnesia so you can take a look if you wish: https://github.com/FrictionalGames/AmnesiaTheDarkDescent

Project is seemingly dead with the latest commit being from 2018.

Two major games with code on github I can think of are Amnesia: The Dark Descent (1) and Celeste (2)

(1) https://github.com/FrictionalGames/AmnesiaTheDarkDescent