Nubarron: The adventure of an unlucky gnome has gone free on steam until the 10th of May @ 3:00am.
This is a Indie-adventure game with a rating of Positive from 36 reviewers on Steam.

Store Page:
https://store.steampowered.com/app/414160/Nubarron_The_adventure_of_an_unlucky_gnome/

Rusty lake hotel has gone free on steam until the 30th of April 2021.
Rusty lake hotel is a point and click adventure game with a rating of 94% Positive ratings from 2,488 reviewers on steam.

Store Page:
https://store.steampowered.com/sub/569800

Looks like Quiplash the party game from Jackbox is free on steam from 22 April 2021 to 26 April 2021. Enjoy!

https://store.steampowered.com/app/351510/Quiplash