I thought of creating such a thread fo a long time but never got to make it. I find very interesting and captivating seeing some games are made by a single dev or a very small team.

The goal of this thread is to discuss and find great games made by a single Person or even a small team if the work is proportionaly inspiring.
Games published on GOG are, of course, the main attraction of the show but sold elsewhere is fine as long the game is worth mentioning.

Everyone has their own take in what is considered a great game, and that's fine, but we can left out generic stuff that while made by a single person, don't actually provide a interesting experience, say, hundreds of Game Maker RPG's on Itch.io.
I think games that are a technological feat, gigantic in scope, a pool of creativity, dialog worth a nobel prize, awsome graphics, mezmerizing art or even just very fun are more than worth mentioning and share, even if it lacks in other aspects, a single person can't be perfect after all.

Optionally you can include links to interviews, blog posts or other interesting source.

For starters:

Banished Made by a single person wich created the own engine to build the game. Available on GOG and a link to the devlog

Dwarf Fortress not available on GOG but if the first minutes of this interview don't captivate you and made you wonder about the game, go play Android games... Link to interview on DuckDuckGo