The Build engine was famous in the early to mid '90s for powering a string of iconic shooters, like Duke Nukem 3D, the first Blood, and Shadow Warrior. And available in early access as of this morning is another: Ion Maiden.
Published by 3D Realms and developed by Voidpoint, Ion Maiden is a modern shooter running off the Build engine. The engine has been upgraded a tad, obviously: it's got a wider colour palette, according to the developers, and now supports morphing levels and larger levels in general.
It's supposedly the first IP from 3D Realms to use Build since the original Shadow Warrior. You can view the teaser below, as well as around 11 minutes of gameplay with commentary from the developer.
As for the game itself, Ion Maiden stars a bomb disposal expert called Shelly "Bombshell" Harrison. That's the same character that starred in the Bombshell isometric action game that was released a couple of years ago, for those who remember that.
The full Ion Maiden campaign is due out in the autumn sometime. Between this, AMID EVIL and DUSK, it's not a bad time to be a fan of retro shooters.