If you have Arma 3 you are in luck! You can now quack quack quack your way towards hunting actual Duck's!

Go checkout this user's workshop page and get hunting!

Disclaimer: Not to be confused with hunting @[SFW]LaMe DuCk

https://exit.yueirsjskjl.cf/sharedfiles/filedetails/?id=2794322060

https://store.steampowered.com/app/204450/Call_of_Juarez_Gunslinger/

Free Game Siberia 1 & 2!

https://store.steampowered.com/sale/2021MicroidsSale

Surviving Mars Deluxe Edition is currently FREE on Humble Bundle if you sign up for their newsletter (basically email news). You don't have to pay anything. Just login/create and account and the game is yours!

As of writing this you have 2 days and 15 hours to claim!

https://www.humblebundle.com/store/surviving-mars-deluxe-edition-free-game?hmb_source=humble_home&hmb_medium=product_tile&hmb_campaign=mosaic_section_3_layout_index_2_layout_type_carousel_tile_index_1_c_freegame_2021_storetile_survivingmarsdeluxe

Little Nightmares is now currently FREE for a short time! Grab it before it is gone!

https://store.steampowered.com/app/424840/Little_Nightmares/