OTR HVN // RELEASE 01
DESCEND INTO IRON ABYSS
A sci-fi horror mecha dungeon crawler about memory, obedience, and the things waiting beneath a dead world.
The world is ended.
You have your orders, Commander.
IRON ABYSS is a deeply immersive sci-fi horror mecha dungeon crawler. Command a three-pilot android crew through the ruins of a post-apocalyptic world in first-person, turn-based grid exploration.
Manage your crew's deteriorating sanity, descend through spaces the IRON ARK was never meant to perceive, and uncover memories that were never meant to survive.
Lead Three Specialized Crew Members
Front-line combat unit that anchors the formation and absorbs the worst the Abyss can throw at your crew.
Front-line support unit responsible for keeping the squad operational when the descent begins taking its toll.
Back-row operator who disrupts, manipulates, and destabilizes threats the crew cannot overpower directly.
Tactical Descent:
The CTB System
Combat runs on a Conditional Turn-Based system. Action order isn't fixed—it shifts dynamically based on crew speed, equipped gear, abilities, and the status effects accumulating on both sides.
Every decision changes the shape of the next turn. Build momentum, interrupt threats, protect weakened pilots, and decide when a rapidly deteriorating situation is worth pushing further.
Every step costs something.
Explore the ruins in first-person, grid-based movement. Each movement carries the possibility of consuming resources, exposing the crew to environmental hazards, or finding something buried beneath the facility.
Recover the Machine's Memories
Descend into the buried history of the IRON ARK's crew and search for the fragments of humanity that remain within a world—and a machine—that has almost forgotten them.
IRON ABYSS is told from the perspective of a surviving commander. Dreamlike memories surface as you descend deeper into the sealed dungeon: a massive corporate complex filled with abandoned experiments, discarded systems, and stories no one was supposed to recover.
You have your mission.
You also have your memories.
Will they collide?
Not ready to descend?
The free IRON ABYSS demo has been updated alongside the 1.0 release.
It now includes the final game's UX improvements, greater readability, performance optimizations, and enhanced cutscenes.
Try the descent before you commit.
Quick Setup Note
Because IRON ABYSS is an independent release, your operating system may display an “Unknown publisher” or security warning when you first launch it.
Full installation instructions are also included in the readme.
Thank you for descending with us.
Thank you for all the wishlists, feedback, playtesting, and support during development. This is our first full indie launch, and every person who played, shared, commented, or followed the project helped us get here.
If you enjoy IRON ABYSS, please consider leaving a rating. It helps independent games far more than you might realize.