Games with time travel are very rare, there are a couple that come to mind.
Time splitters uses time travel in the plot and very little mechanically.
Achron is an RTS with time travel mechanics that’s honestly the only game I’ve ever played that allows you to time travel freely. E.g. send a scout to the enemy base, he gets killed, so you go back and don’t send him.
Games with time travel are very rare, there are a couple that come to mind.
Time splitters uses time travel in the plot and very little mechanically.
Achron is an RTS with time travel mechanics that’s honestly the only game I’ve ever played that allows you to time travel freely. E.g. send a scout to the enemy base, he gets killed, so you go back and don’t send him.
The Journeyman Project is an old game that seems fond to me, but I’m not sure how it would hold up now.
There’s an answer right there.
I’d like to remake Darkest of Days and let it live up to its potential.