Darkenstein 3D is a free retro-style first-person shooter that pays homage to Wolfenstein and DOOM. Released in October 2025 on Steam by MicroProse, the game features fast-paced action, bloody gunplay, secret-packed levels, and distinctly nostalgic graphics. Players control the Hobo Guy on a mission through 13 stages to rescue his kidnapped dog, facing Nazi and supernatural enemies in labyrinthine environments.

Developed solo over several years, Darkenstein 3D captures the skill-driven gameplay of ‘90s classics while adding touches like ragdoll physics and modern visual effects. The title is praised for its love letter approach to vintage FPS gaming, lacking microtransactions and offering pure, challenging fun.