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.

Cyberpunk 2077 is an open-world, action-adventure story set in Night City, a megalopolis obsessed with power, glamour and body modification. You play as V, a mercenary outlaw going after a one-of-a-kind implant that is the key to immortality. You can customize your character’s cyberware, skillset and playstyle, and explore a vast city where the choices you make shape the story and the world around you.

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.

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.

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!

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.

The Earthlings have joined the interstellar club. The galaxy will never be the same. The year is 2086 and Earth has detected an alien distress call originating from the surface of Triton. In response, Star Control is formed with you as The Captain of Earth's first prototype starship.

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

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

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