https://store.steampowered.com/app/209630/Magrunner_Dark_Pulse/ free for the next eight and a half hours.
https://www.epicgames.com/store/en-US/product/enter-the-gungeon/home Free gungeon for a bit longer, my favorite game ever
https://store.steampowered.com/app/532210/Life_is_Strange_2/ Life is Strange 2, Episode 1 is now free on Steam! Go get it if you're a fan of the original.
https://www.epicgames.com/store/en-US/product/rocket-league/home Rocket League is free for a while, get it.
https://www.epicgames.com/store/en-US/product/rollercoaster-tycoon-3-complete-edition/home Roller Coaster Tycoon 3 Complete Edition is free on Epic Games for the next week. I have sunk way too many hours into this game
I would wait a day or two before playing Rising Storm 2. The latest patch they released today caused new bugs and is affecting server performance.
https://key-hub.eu/giveaway/8 You gotta do a dumb checklist to get the game, War Identity. It's in beta right now.
Dungeons 3 is available for free through Epic Games. It's $30 on Steam. It seems to be a mix of Dungeon Keeper and Warcraft/Starcraft RTS from what I've played of it so far.
