The game engine for Planet Zoo is Cobra. Planet Zoo will require Radeon RX 580 8GB graphics card with a Core i7-4770K 4-Core 3.5GHz or Ryzen R5 1600 processor to reach the recommended specs, achieving high graphics setting on 1080p. Planet Zoo needs a Radeon R9 270X graphics card to play on low settings, with a Core i5-2500 3.3GHz or FX-6350 processor to reach the minimum specs, achieving 30FPS on 1080p monitor res. Don't try and play Planet Zoo without 8 GB, which helps get the 30FPS Another thing to consider is the DirectX capability of your GPU. Planet Zoo needs a GPU capable of running DirectX 11.00. To summarise, Planet Zoo needs around a 5 year old PC to play at recommended settings.