Woo, I love making 7DRLs!
This year I made a game about time manipulation, with the main aim being to have time mechanics that are simple and effective enough to use regularly in a tactical way. And altogether I'm very happy with how it came out.
Time To Die is a game about a time cop travelling through epochs to clean up weird anomalies in time. You shoot bullets and place bombs to hit enemies in their direction-based weak points, and you can pause and rewind time at will. Clever use of time manipulation is required, with some enemies needing to be hit from multiple directions simultaneously to be defeated.
Available for Windows, Mac and Linux. Any feedback welcome! So far people have founded it a little confusing and difficult, but I'm used to that each year