Navigate a naval arcade shooter as the HMS , destroying icebergs and battling enemy ships, planes, mines, and rocket platforms. Use weapons to clear obstacles and progress across the Atlantic. Complete levels and unlock new content.
Control a submarine and launch torpedoes to destroy enemy ships. Avoid depth charges by using the canon. Defend against enemy fire including single shots and barrages. Purchase mines every ten seconds to deploy up to three at once.
Ships to create upgraded versions with higher value. Collect and combine over 100 different types. Use gifts to enhance upgrades. Access multiple power types for improvements. Automatically fill slots for continuous progression.