Games like Rune Factory 4
Hytale
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.
Escape from Tarkov
Escape from Tarkov is a hardcore and realistic online first-person action RPG/Simulator with MMO features and story-driven walkthrough.
Forgotton Anne
Forgotton Anne is a 2d cinematic adventure game combining puzzle platforming with adventure game elements. You play as Anne, the enforcer keeping order in the Forgotton Realm, as she sets out to squash a rebellion that might prevent her master, Bonku, and herself from returning to the human world. The World of Forgotton Anne: Imagine a place where everything that is lost and forgotten goes; old toys, letters, single socks. The Forgotten Realm is a magical world inhabited by Forgotlings, creatures composed of mislaid objects longing to be remembered again.
Star Control: Origins
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.
SoulWorker
Soulworker is an anime action MMORPG which takes place in the Cloudrealm, a now vacant city which only harbors the psychics and a horde of monsters. Players will learn about the fate of the city and the reason for the disappearance of all inhabitants through the course of the game, as well as possibly finding a way to reverse this catastrophe.
Force of Nature
Force of Nature is an indie open world sandbox game with fighting, crafting, building and farming systems.
Eve: Echoes
A brand-new spaceship sandbox MMO set in an alternate New Eden, the sci-fi universe of Eve Online.
Life is Feudal: Your Own
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.
Survivalist
It's one year after the collapse of civilization and self-centered hedge fund manager Joe Wheeler emerges from his specially constructed bunker in search of food. This is a huge open-world RPG where you have the freedom to play how you want - but your choices have consequences. Your aim is to find other survivors, gain their respect, and build a community. You'll scavenge for supplies, trade, plant crops, go on quests, face moral dilemmas, go to war, and uncover dark, terrible secrets!
Dude Simulator
Dude Simulator is an open world sandbox game. This is a life simulator. The main objective is to enjoy what you are doing.