3D Realms has announced a new retro-like first-person shooter, Ion Maiden. The game uses an adapted version of the popular Build engine that was introduced in the '90s. Ion Maiden greatly resembles classic shooters such as Duke Nukem 3D, Blood and Shadow Warrior. The game has released in Early Access and will receive a definitive release in the coming months.
https://www.notebookcheck.net/3D-Realms-releases-retro-FPS-Ion-Maiden-in-Early-Access.287168.0.html