
Underworld
About the Game
Underworld is a 2D pixel-art action-adventure platformer set in a haunting sci-fi realm deep beneath the surface. You play as a nano-enhanced swordsman, awakened by a mysterious AI after being left for dead in the ruins of a forgotten world. With your body rebuilt and your mind linked to advanced technology, you're the last hope to stop the growing corruption spreading through the depths. Explore a nonlinear world filled with dangerous creatures, hidden secrets, and lost souls. Every step forward requires precision, courage, and a sharp blade. Inspired by Metroidvania exploration and Souls-like combat, Underworld challenges you to think, adapt, and survive in a beautifully decayed futuristic landscape.
Features
Precision Combat โ Engage in intense melee battles where timing, spacing, and stamina management are key to survival.
Sci-Fi Metroidvania World โ Unlock new paths with abilities, upgrades, and relics as you traverse a sprawling underworld network.
AI-Guided Narrative โ Discover a dark, layered story through your AI companion as you uncover the truth of who you are—and what you've become.
Pixel Art Atmosphere โ Explore a visually striking 2D world with hand-crafted environments, dynamic lighting, and eerie sci-fi vibes.
Souls & Upgrades โ Absorb fallen souls to enhance your abilities, unlock skills, and customize your fighting style.
Singleplayer Experience โ No distractions, no hand-holding—just you, your sword, and the horrors of the underworld.
© 2026 Nitrous Studio — All rights reserved
| Published | 1 day ago |
| Status | Released |
| Platforms | HTML5, Windows |
| Release date | 2 days ago |
| Authors | Nitrous Studio, TheKaiser-design |
| Genre | Platformer, Adventure |
| Made with | Unity |
| Tags | 2D, Metroidvania, Pixel Art, Souls-like |
| Average session | About an hour |
| Languages | English |
| Inputs | Keyboard, Mouse |
| Links | Blog |
Download
Click download now to get access to the following files:
Development log
- Welcome to the Underworld !1 day ago



Comments
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This is for sure a great game! i enjoyed playing a lot. The graphic is great and the use of a comic book opening is original. However i do have some feedback if you don't mind.
Besides this, fantastic work!