Project Fleet is a 2D sci-fi real-time strategy game that combines elements of fleet management, autobattler mechanics, and puzzle-solving. Players engage in a rebellion against the Empire, raiding various planets in a roguelite style while managing resources and battling enemies. The game features a grid-based battlefield where players can strategically place their equipped spaceships from their hangar, utilizing formations for extra rewards. With four unique classes—Gatherers, Fighters, Supporters, and Factories—each with distinct abilities, players can tailor their strategies to overcome challenges and conquer planets.

The game offers an immersive experience with 12 different planets, each increasing in difficulty, and numerous events to navigate. Project Fleet includes both Story Mode and Highscore Mode with an online leaderboard, enhancing replayability. Players can explore a variety of power-ups, base expansions, and engage with NPC traders for quests, all set to a backdrop of 14 unique soundtracks that enrich the gameplay experience.