
An action-infused Idle/Incremental game that blends effortless play with satisfying combat. It combines rewarding incremental progression with action and RPG elements, creating a deep, grind-driven progression system focused on upgrades, long-term growth, and a highly addictive gameplay loop.

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You don’t remember how you got here.
There’s no sky above you, no clear way out, just a dungeon that seems to stretch endlessly, one room at a time.
At first, all you can do is fight.
You swing your weapon with your mouse, defeat the creatures that appear, and collect the coins they leave behind. It’s simple. Familiar. Almost calming.
And then… You do it again.
With each run, you grow a little stronger.
Coins are spent on upgrades, new abilities, and stat improvements. Attacks become smoother. Progress comes faster.
As you progress deeper, new enemy types, tougher encounters, and scaling difficulty begin to challenge your build. You’ll unlock a wide variety of active abilities and upgrades, allowing you to experiment with different playstyles and approaches.
Just keep going.
Keep getting stronger.
Keep uncovering the truth one step at a time.
Mouse-driven combat
Direct, responsive control over every attack
Incremental progression system
Earn resources, upgrade your character, and grow stronger each run
Wide range of active abilities
Unlock and experiment with many skills to define your playstyle
Replayable dungeon loop
Increasing difficulty, scaling rewards, and endless improvement
Flexible run structure
Enter and exit the dungeon freely, or push your limits until defeat
NPC interactions & light narrative
Discover the story through subtle dialogue and encounters
You didn’t choose this place.
But over time…
It might start to feel like yours.
Steam lists the That One Dungeon Room release date as Q4 2026.
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