Interstellar Marines, a once promising sci-fi first-person shooter that slowly died is slowly making a comeback. Update 28 was released just recently, giving it an overhaul in a few places.
The biggest change is their update from the Unity game engine 5.1.3 to a much more modern 5.6.7. They say this allows them to bring in performance and optimization updates, lighting improvements, shader upgrades, deferred rendering, PBR materials support and so on. Lots of fancy new graphical features are available to them.
You can see some of the enhancements in the below video:
Going over their changelog, they added Linux editor support for those contributors helping to keep it alive that work on Linux machines, exhaustion and damage post-processing effects, an option to adjust motion blur amount, basic lean mechanics, AR can no longer shoot through walls along with various other improvements and bug fixes.
I am glad it's still alive, as it does continue to be promising. When you actually manage to get into a game and play with others in co-op or the traditional online modes, it can be a serious amount of fun. Especially with the dynamic maps, something not seen in a lot of first-person shooters even now. Sadly many have felt burned by the obvious lack of progress when the developer originally ran out of funding.