Games like Sea of Craft

"Starship EVO is a work-in-progress space sim that offers a creative building experience, allowing players to build and customize starships, space stations, and handheld weapons using a variety of tools and options. The game currently features engaging space battles and plans to add a survival mode in the future. A Server/Client framework is used for multiplayer, which requires port forwarding." less than 400 characters, more than 100 characters.

"NavalArt is a strategy game that allows for both single-player and multiplayer modes, including PvP. The game is a sandbox experience that involves ship design, construction, physics, and combat. As a player, you will construct your own warships using various parts and tools provided, and guide your fleet through different eras."

"The Last Leviathan is a single-player historical simulation game with exceptional shipbuilding and destruction mechanics, phenomenal visuals, and a vast ancient sea to explore. Construct battle ships to defeat rival clans, solve physics-puzzles, and battle monstrous leviathans on your journey to uncover the truth about the last of its kind. Engage in naval encounters, trade, and discover hidden treasures along the way."

"Breakwaters is a 2-player co-op/single-player exploration survival game with a good plot and exceptional gameplay. The game features a procedural world with interactive water simulations, massive Titans, and ocean depths filled with rare resources. Players can gather crystals, build structures, and engage in trading with passing fishermen to rebuild and survive in this compelling game, despite its numerous grinding and bugs."

"Trailmakers is a physics-based vehicle construction sandbox game, where you can build and pilot cars, planes, and boats in a variety of environments. The game features a campaign mode, rally mode to learn building, and sandbox maps for creative building. Multiplayer mode supports up to eight players for cooperative or competitive gameplay. Use various weapons and blocks to build and customize your ultimate combat vehicle."

"KitHack Model Club is a simulation game that allows 1-2 players to build and customize RC vehicles in a multiplayer setting. The game features physics-based mechanics, encouraging players to make every design decision count. With numerous parts, paint, and decals to choose from, create and race your unique vehicles in this ultimate model-building platform."

Empyrion: Galactic Survival is a space survival adventure game that lets players build and pilot their own space ships and stations. Explore, mine, and fight across procedurally generated planets and alien structures in a vast, open universe. Experience a mix of sandbox construction, survival, and combat gameplay, with a heavy emphasis on player freedom and creativity.

Lost Skies is an open-world adventure set among floating islands where you explore ancient ruins and harness the mysterious power Atlas. Battle ancient turrets, drones, and colossal sky creatures while crafting and upgrading your skyship, which serves as both your home and weapon. Uncover the secrets behind a lost civilization’s downfall through exploration and intense sky battles.

"From The Depths" is a sandbox vehicle construction game where you can build and command battleships, planes, submarines, and more in intense battles. The game features a creative mode, a strategic campaign with eight factions, and a story mode. It also offers in-game planet, campaign, mission, and multiplayer map editors, as well as Steam workshop support for sharing your creations. Available on PC, Mac, and Linux.

Planet Explorers is an open-world sandbox adventure game set on a distant planet. Players can build and customize their own tools, vehicles, and structures, while also gathering resources, completing missions, and fighting alien creatures. The game features a dynamic story generation system, allowing for a unique experience with each playthrough.