Epic, until tomorrow:
Solitairica

I have not played this at all, but it at least looks interesting. Claims to be a procedural, roguelike, rpg, solitaire, card game... That ticks quite a few boxes for me, so I'll have to give it a shot.
Epic, until tomorrow:
Torchlight 2

GoG, until it's not:
Metro: Last Light Redux
In response to Flick
Flick wrote:
GoG, until it's not:
Metro: Last Light Redux

Did some digging on their site. Offer ends Jan 1st, 2021 at 6AM PST.
Epic, until Jan 7:
Jurassic World: Evolution
Epic, until Jan 14:
Crying Suns
Epic, until Jan 28:
Galatic Civiliations III
Steam, until Feb 1:
Ultimate Epic Battle Simulator

Epic, until Feb 4:
Dandara: Trials of Fear
Indiegala:
Garfield Cart
Ubisoft, until Feb 16:
Assassin's Creed Chronicles: China
Epic, until Feb 18:
Halcyon 6: Lightspeed Edition
Epic, until Feb 25:
Rage 2
Absolute Drift
GOG, until April 1:
XIII
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