Ryzom

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.

Hardcore medieval multiplayer sandbox with terraforming, free preset and modular building construction, rich crafting (smelting, forging, farming, animal breeding etc.), survival, no target physics based combat, original combat formation system and numerous other features. Taking place in the fictional medieval world, game imposes a realistic system of global politics, economy, and socialization.

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.

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.

A New Land, A New Life: Savage Lands is a gritty, brutal, first-person open-world fantasy survival experience in which players have only one goal: Stay Alive. Explore a world where days and nights are spent slaughtering vicious creatures, gathering scarce resources, building shelter and crafting powerful weapons needed to survive. Every decision counts, because one mistake can lead to an unfortunate encounter with death's cold embrace.

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.

Citadel: Forged With Fire is a massive online sandbox RPG with elements of magic, spellcasting and inner-kingdom conflict. You have complete freedom to pursue your own destiny; hatch plots of trickery and deceit to ascend the ranks among allies and enemies, become an infamous hunter of other players, build massive and unique castles, tame mighty beasts to do your bidding, and visit uncharted territories to unravel their rich and intriguing history. The path to ultimate power and influence is yours to choose.

Hytale combines the scope of a sandbox with the depth of a roleplaying game, immersing players in a procedurally generated world where teetering towers and deep dungeons promise rich rewards throughout their adventures. Hytale supports everything from block-by-block construction to scripting and minigame creation, delivered using easy to use and powerful tools.