Games like Sea Chain

MyWorld - Action RPG Maker is a sandbox-style RPG game that allows players to create and share their own adventures. With an intuitive interface and a variety of tools, you can design your own characters, monsters, quests, and environments. The game also includes a lengthy campaign mode, offering a fun and engaging RPG experience even for those who just want to play and not create.

The Earth's looking a bit Grim, but so would you after 5000 years and countless alien invasions! Grab your spacesuit (the air's not so great any more) and go for an adventure in what is still a beautiful world.

"The Withering" is a post-apocalyptic survival strategy game. Collect resources, build and maintain your base, and protect it from zombie-like creatures called "Withered". Manage your health, hunger, and sanity while navigating through a procedurally generated world with dynamic weather and time of day systems.

"Corsairs Legacy - Pirate Action RPG & Sea Battles" is a story-driven adventure game where you play as Rufus Monroe, an adventurous smuggler in the Caribbean. After a raid goes wrong, you'll face dangerous voyages, perilous piracy, and fatal fights against powerful enemies. The game is designed according to historical prototypes and challenges you to survive the dangers of the Caribbean and become a legendary pirate.

Welcome to Bloodwatch, a short horror survival game developed by Gamingscape. When going out in a solo adventure, your ship has been sunken by an unexpected storm. You have been washed ashore by a wave. Waking up, you have realized you have been stuck in an unknown island. You search around to see is there any animal or people living in here. After a while, you see a group of people are tortu…

"Don't Sink" is a swashbuckling adventure game where you command a pirate fleet. Manage resources, engage in ship-to-ship combat, and make important decisions that can lead to prosperity or pirate peril. Your goal is to become the most notorious pirate captain on the high seas, while outwitting rivals and uncovering the mysteries of the Caribbean.

"Blood & Gold: Caribbean" is a strategy and RPG game set in the 17th century Caribbean. Formerly known as "Caribbean!", the game now includes new features such as a playable female character, native tribes, and special missions. The game is an open-world pirate adventure, where players can decide their own role and create their own story. It is an improved version of Mount & Blade: Warband engine.

Oasis Mission: Colony Sim challenges you to build and manage a thriving colony by choosing a story and location while overcoming economic and industrial obstacles. Design modular ships equipped with AI that adapt based on assigned tasks and resources. Balance your people’s needs and create autonomous districts to ensure survival against an AI-driven world domination threat.

"Undawn is a free-to-play, action-packed open-world survival RPG, combining PvP and PvE modes for a thrilling post-apocalyptic experience. Brace for harsh environments, realistic survival mechanics, and customizable characters in this immersive adventure. However, be prepared for grinding and numerous bugs that may impact gameplay."

Interstellar Rift is a sandbox-style RPG set in the vastness of space. Players can explore, trade, and build their own spaceships as they navigate an open world filled with procedurally generated galaxies and alien races. Collaborative gameplay is encouraged, with the option for players to form factions, engage in piracy, or work together on massive capital ships. The ship-building aspect is highly detailed, allowing for customization of every aspect from engine to weaponry.