To run Lost Sea on high graphics settings your PC will require at least a 0MB GeForce GTX 660 / Radeon R9 270 with a Core 2 Quad Q9550 2.83GHz or Phenom II X4 40 CPU. The RAM requirements are at least a 4 GB memory. To be able to run at all you will need at least 2 GB system memory. Another thing to consider is the DirectX capability of your GPU. Lost Sea needs a GPU capable of running DirectX 9. Finally, Lost Sea will need hardware that is a 7 year old PC or younger to run recommended.
