Kenshi is a single player free-roaming Role Playing Game, with a Real-Time Strategy influence. Its squad-based, meaning you have a whole team of characters who can split up and go to different ends of the world. The game world is 400 square km of seamless terrain with a world map screen for fast-travel, Fallout style. You can play with one character, or with 50, and there are advantages to both. Combat is real-time and is based on swords and bows, action beat-em up style but with RPG stats influencing the outcome. No Magic. No fantasy cliches. Think of a combination of X-Com Apocalypse and Oblivion.
To run Kenshi on high graphics settings your PC will require at least a 2GB GeForce GTX 770 / Radeon R9 280X with a Core i5-7500 3.4GHz or FX-8350 CPU. Kenshi needs a Core i3-540 3.06GHz or Phenom II X3 720 processor coupled with a GeForce GTX 950 2GB to get it to run minimum system requirements. This will return around 30FPS at 720p screen res on low graphics settings, but you can also adjust the settings further to tweak. To be able to run at all you will need at least 6 GB system memory. Your graphics card will need to be capable of running DirectX 11. In short you need a 6 year old PC for best Kenshi performance.