holonaut64 is the itch.io account behind Swaggerfall; the game's Steam page lists the developer and publisher as holonaut. On the game page the developer writes that they have made games in their free time since 2011 and have worked as a fullstack developer since 2018, specialising in developer tooling, testing and static analysis.
A first-person open-world fantasy RPG drawn in ASCII in your terminal, with an infinite procedural world and turn-based fights driven by quick-time events.