I’d recommend Beyond All Reason. It’s open-source and utilizes a realistic scifi theme. You essentially manage metal and energy to produce more units, to fight against other player’s units. It’s very easy to learn, and looks nice graphically. The only caveat I can think of is that it is not on Steam. Game Link: https://www.beyondallreason.info/

It’s a pretty interesting project. Essentially, Yggdrasil is an e2e encrypted, p2p IPv6 network using a mesh architecture running on top of the regular internet. It’s similar to i2p, but not made for anonymity. Yggdrasil is still in development, but I think it is promising. Project link: https://yggdrasil-network.github.io/

I wonder if something like the Yggdrasil Network could become popular. Now that dns has become so corporatized, perhaps some sort of federated, alternative dns network which wasn’t managed by companies could be created.