
1) Linux game 2) Windows game
Found on
https://www.crosswordclues.com/clue/achron

For the composer, see Joseph Achron. Achron is considered to be the first `meta-time strategy game` (Real-time strategy with time travel), notable for being the first game with free-form multiplayer time travel and its subtle handling of temporal paradoxes such as the grandfather paradox. Achron was released on August 29, 2011. ==Gameplay== The .....
Found on
http://en.wikipedia.org/wiki/Achron
No exact match found.