Press kit.

About the studio

Oyen & Umi Games is a two-person independent games publisher based in Graz, Austria. The team publishes One Million Coins and the upcoming Mochi Cats.

The pitch

A short, focused first-person incremental mining game. Dig through a vault of one million coins, bank your haul, buy better tools, and build an ever-faster gold-collecting operation.

About the game

Begin with empty pockets and your bare hands inside a vault holding exactly one million coins. Collect gold from the pile, carry each haul to a deposit station, and spend your earnings on better equipment. Each upgrade makes the next trip faster and more rewarding.

Unlock increasingly powerful tools, expand your carrying capacity with pouches and backpacks, and build your own approach through a skill tree with over 250 nodes across seven upgrade paths. Improve movement, reach, collection speed, tool strength, capacity, and deposit efficiency as you dig deeper into the bunker.

Restore deposit stations, cargo lifts, conveyors, and the bunker's infrastructure as you work toward collecting every last coin. The game is designed as a focused experience of around two hours.

Key features

• Hands-on, first-person coin collecting
• A finite vault containing exactly 1,000,000 coins
• Incremental progression from bare hands to powerful collection tools
• A 250+ node skill tree across seven upgrade paths
• Bags and upgrades that expand carrying capacity
• Deposit stations, cargo lifts, conveyors, and bunker infrastructure to restore
• A deeper underground vault to explore at your own pace
• A clear goal: collect every last coin and empty the bunker

Gameplay & trailer

About the game

Rotate and drop pairs of squishy cats into a box. Merge matching cats into larger ones, keep grumpy cats apart, and use treats to free up space. Earn new cat sets and room backgrounds by playing.

• Physics-based cat merging and score chasing
• Grumpy cats that need space
• Unlockable themed cats and rooms

Gameplay