Games like Pirates of the Polygon Sea

Windward is a role-playing game that can be played by yourself or with others in a massively multiplayer environment. The game allows you to generate a procedural world, design your own faction, and engage in activities such as combat, trading, and questing. As you progress, you can upgrade your ship and towns will grow, offering improved rewards and opportunities. However, the game can have its share of bugs and grinding.

Tempest - Pirate Action RPG is an open-world adventure where you become a daring pirate, exploring seas, completing multilevel quests, and fighting against sea monsters while assembling your crew and upgrading your ship with deadly weapons. Share the vast world with friends for co-op or PvP action, and discover the fascinating story through over a hundred quests across dozens of islands. Complete with naval battles, sea monsters, and mystic crystals, Tempest offers a complete pirate experience.

"Buccaneers!" is a single-player historical role-playing game with an intriguing story and good graphics. As a fearless captain, pledge your allegiance to one of four factions, each with unique abilities and starting locations. Engage in intense naval battles, upgrade your warship, and conquer an ever-changing Caribbean sea to leave your mark on the world. With hours of replayability, find legendary treasures, battle powerful ships and make your mark on history.

Become king of pirates while sailing through seaports, battles, krakens & navy

"Abandon Ship" is a naval combat game set in a fantastical Age of Sail world, where you battle enemy ships and sea monsters in treacherous environments. With a wide range of unique, story-filled islands to discover, each voyage brings new challenges and the risk of permanent death. The game's Art Style is reminiscent of classic Naval Oil Paintings, adding to its immersive atmosphere.

Airship: Kingdoms Adrift is an airship trading and combat simulator, set in the wake of a Great Sky War that ripped through the steampunk world of Spheara. An uneasy cease-fire holds between the Aecerlian Kingdom, the New Viridian Republic, and the Teutonic Confederation. As they lick their wounds, their suddenly jobless soldiers and skyfarers look for new opportunities among the desolation.Enter …

"Man O' War: Corsair - Warhammer Naval Battles" is a single-player open world fantasy game with a great soundtrack, but it is poorly optimized and buggy. Players engage in epic naval combat, explore the oceans of the Warhammer world, and battle enemies on deck in boarding actions. The game offers a variety of unique ships, races, and allies to command, with the goal of dominating everything in your path.

"Maelstrom" is a simulation game that offers both single-player and multiplayer modes, including co-op and PvP for up to 2 players. Experience thunderous naval combat in a grimm fantasy world with beautiful visuals and plenty of humor. Sink other players' ships, collect loot, and avoid sea monsters to upgrade and customize your own ship in this immersive game of strategy and skill.

"The Pirate: Caribbean Hunt" is a high seas adventure game that allows players to navigate the Caribbean in the golden age of piracy. Build and upgrade your fleet, engage in ship-to-ship combat, and explore ports while completing quests to build your reputation. The game features a variety of customization options, including ship design and weapon loadouts. However, some players have criticized the game for repetitive gameplay and a lack of engaging story.

"Star Valor" is a single-player, open-world space simulator where players can explore the galaxy, engage in space combat, and manage their own spaceship. With various ships, weapons, and equipment to choose from, players can customize their gameplay experience while completing missions and uncovering the game's storyline. The game also features a dynamic economy, AI-controlled factions, and procedural generation of planets and systems for a unique experience each time.