https://www.gamespot.com/articles/grab-a-free-pc-game-for-steam-right-now/1100-6460767/

The Humble Store has a nice surprise anyone with a gaming PC can take advantage of between now and July 28. If you head over to the Guns of Icarus Alliance page, you can get a copy of the game on Steam for free. It's compatible with PC, Mac, and Linux, and you can keep and play it forever. All you need is a Humble account and a computer powerful enough to run it.

Guns of Icarus Alliance is a game of team-based airship battles set in a steampunk world. Much like Sea of Thieves, it has you and your teammates work together, taking on roles of pilot, gunner, and engineer to control the ship and engage in sky battles against enemies.