You can add ABI-DOS to your library for zero dollars and zero cents via its Steam page. On the subject of Zachtronics, some of the team have found new life as a developer of primarily tabletop games ...
Publisher Astra Logical and developer kaleidoscube have announced RECUR, a puzzle platformer in which players can rewind, fast-forward, and pause time. It will launch for PC via Steam in 2026.