Is there anything that proprietary software can do and has no open alternative?

GZDoom for Doom and many other games running on the same engine.

#Data Dashboard #Marketing Platform #Games 8 social mentions

2

Warzone 2100

Also Doom itself and various other ID games are fully open source. In addition there is another game, Warzone2100 was re-released as open source by the developers as well. I'm sure there are more games like these, but this all that comes to the top of my mind.

#Games #Strategy Games #Action Games 61 social mentions

3

OpenMW

#Action #CMS #Games 161 social mentions

4

Olive Video Editor

Also, keep an eye on https://olivevideoeditor.org/ for video editing. It is still in Beta, but looks very promising.

#Video #Video Editors #Video Editor 15 social mentions