Guest play first
Open the game and dive immediately. There is no paywall, forced registration, or advertisement required to begin a run.
Original games · Free to play
Dive into Snap Sub
Pilot a brass submarine through mines, chains, and the hazards of the deep. Every run is quick to start, difficult to master, and free to play without an account.
Optional competition
Players age 13 and older can choose to join Online Rankings. A local best still stays on the device when a player skips the board.
Rewards Club, 18+
Signed-in players 18 or older earn shared OBrien Games credits. In Snap Sub, every 100 times the sub is lost they receive 10 credits. Younger players still dive and can join the board.
Advertising supported
Advertising keeps the game free. New ranking members and Top 25 Elite players can earn stretches with ads off without changing the core game.
About OBrien Games
Small games with a strong identity
OBrien Games builds original browser and mobile games designed for short sessions, readable controls, and fair guest play. Snap Sub is our first public title, combining hand-built nautical artwork with a score-driven arcade challenge.
Learn the controls in the game guide, read the rules, or see the current Top 100.