About This Game

One purchase. Two players.

Challenge a friend to an underground tank duel. One of you owns Tunnel Brawl; the other installs free Friend Pass on their own Steam account. The owner creates a lobby, shares an invitation and you face each other on separate computers. The owner must stay in the same lobby and match. Friend Pass is not a standalone full licence.

Dig your route to a rival

Darkness and unexplored ground stand between you. Cut through earth, work around solid rock and look for the other tank's tracks. A new passage can set up a surprise attack — or lead your opponent straight back to you.

Fire, or get home?

Cannon fire and fast digging draw from the same energy pool. Return to base to recharge and repair your shield. Running out of energy destroys your tank and gives your opponent a point. Choose when to press the attack and when to retreat.

First to three

The duel ends at three points or after eight minutes. Destruction sends you back to your base. After the match, the full map reveals the routes your opponent took. Then you can play a rematch.

• Online duels for exactly two players.

• Tunnels you create, destructible earth and solid rock.

• Limited visibility and shared energy for firing and fast digging.

• Windows, macOS and Linux; English and Czech interfaces.

• Free Friend Pass for one guest playing alongside an owner.

An internet connection and two players are required. Arrange a duel with a friend, or join the community to agree a time to play. An independent game by Josef ‘Chose’ Šíma, inspired by DOS classic Tunneler and published by Supro Nivelo s.r.o.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Generative AI tools were used during development to help create some visual assets, including environment textures, branding and promotional artwork, as well as store copy and localization. These materials are selected, reviewed and integrated by the developer. Gameplay screenshots are captured from the game. No generative AI content is created during play, and the game does not connect to external AI services.