Retimed Free Weekend

Also free to play on Steam this weekend is Retimed, offering a retro, multiplayer arena shooter with time-altering mechanics for Windows and macOS (thanks SteamDB via Ant). The game is also on sale, so if you decide to pick it up, you'll get a 45% discount off the regular price. Here's more:
Retimed is a multiplayer arena shooter for 1-4 players with SLOWMOTION. When a player is in danger, time slows down and a time bubble is created around the player. Now there is enough time to react and try to dodge the deadly projectiles. These time bubbles generate exciting alternations between fast-paced movement and tension-filled slowmotion moments.