Daiva Story 6: Imperial of Nirsartia

A sci-fi action-strategy game released in Japan in 1986 for the NES, developed by T&E Soft and published by Toshiba EMI. It's part 6 of a long-running series, though the only one to be released on the NES.

Force of Nature is an indie open world sandbox game with fighting, crafting, building and farming systems.

Cyberpunk 2077 is an open-world action-adventure game set in Night City, a sprawling metropolis driven by power, glamour, and body modification. Players assume the role of V, a mercenary outlaw in pursuit of a unique implant that holds the key to immortality. The game allows extensive customization of cyberware, skills, and playstyle. Choices made throughout the journey influence both the narrative and the world.

Miscreated is a multiplayer online hardcore survival game set in a post-apocalyptic future. You will need to survive against mutants, players, and even mother nature herself.

Empyrion - Galactic Survival is a 3D open world space sandbox survival adventure. Build mighty ships, menacing space stations and vast planetary settlements to explore, conquer or exploit a variety of different planets and the allegedly empty space!

Rising World is an open-world sandbox game with randomly generated, fully destructible environments. Starting with the most basic of tools, collect resources to survive in the wildness. Evolve your world to create one of the biggest cities of all time or a gigantic castle, or simply let your imagination run riot! If being creative is all too much, just connect with your friends and get them to help. Rising World is a procedurally generated world, with fully textures landscapes, over 200 different building materials, loads of tools and many other items to help you create OR destroy your world without any restrictions.

Dude Simulator is an open world sandbox game. This is a life simulator. The main objective is to enjoy what you are doing.

Sky Break is an open-world game on a stormy abandoned planet filled with wild mechas. Learn to master this world and to hack the mechas if you want a chance to survive.

Battle Brothers is a turn based strategy RPG mix which has you leading a mercenary company in a gritty, low-power, medieval fantasy world. You decide where to go, whom to hire or to fight, what contracts to take and how to train and equip your men in a procedurally generated open world campaign. Do you have what it takes to lead them through bloody battles and to victory? The game consists of a strategic worldmap and a tactical combat layer. On the worldmap you can freely travel in order to take contracts that earn you good coin, find places worth looting, enemies worth pursuing or towns to resupply and hire men at. This is also where you manage, level up and equip your Battle Brothers. Once you engage a hostile party the game will switch to a tactical map where the actual fighting takes place as detailed turn based combat.

Star Control: Origins is a science fiction action-adventure game that combines planetary exploration, diplomacy with alien races, and one-on-one ship-to-ship space battles. Players captain a starship, sending a lander to survey planets, gather resources, and examine artifacts, then spending those resources on new technologies, weapons, upgrades, and ships from other races. The top-down Fleet Battles pit two vessels against each other and can be played against the AI or in multiplayer. It is considered part of the Star Control series but takes place in a separate universe from the original games.

A brand-new spaceship sandbox MMO set in an alternate New Eden, the sci-fi universe of Eve Online.