Insurmountable gets an alpha demo that you can download over at its Steam store page, a strategic adventure game developed by Byterockers’ Games.
You play as a mountaineer that has to explore multiple dangerous randomly generated mountains, and you might even experience permadeath if you’re not careful on your way up to the summit.
You can climb mountains, gather supplies, improve your skills that can help you choose from various playstyles, and focus on surviving a harsh unforgiving climate and environment.
You can also check out this Let’s Play of the game by Youtuber Macbigicekeys, if you’re more of a watcher.