This Witcher 3 mod by SkacikPL lets you experience the game in first person mode.
Note: Currently the mod doesn’t support combat or horseback riding.
http://www.nexusmods.com/witcher3/mods/1862/?
Top 10 RPGs of All Time
https://www.youtube.com/watch?v=D86K3Hdmj9s
GTA 5: 3 Amazing Avenger Mods – IGN’s Mod Showcase
https://www.youtube.com/watch?v=jQFYZHGhUKU