To anyone who grew up playing shooters in the 90s - when games came on floppy disks and nobody had a graphics card - this game is for you. It is a love letter to all things cool and retro. Created using the Build engine (which powered the likes of Duke Nukem 3D, Blood and Shadow Warrior) I was shocked by how far they have pushed this old engine. The level design and art style are amazing. The Midi style sound effects and music is also a nice touch.

The gameplay is also top notch - proper old school run and gun. No cover system or regenerating health - back to basics. The enemy types are nice and varied and the game offers a decent amount of challenge even on medium difficulty.

My only gripes with the game would be the lack of any exotic type weapon - all the weapons in the game have good functionality and suit their purpose but nothing really stood out as being totally bad ass - like the BFG in Doom or the Life Leach in Blood. I also wasn't a fan of those damn Spider Head things on the floor - don't mind the odd one but they were everywhere and annoying.

Apart from that I could honestly say this is the best Build engine game ever made from a technical point of view. The devs have created a marvel of a shooter - I just wish we got the same treatment on a new Duke Nukem or Blood game as I preferred the characters and story settings in those games more but this is still an absolute gem and a must by for any retro gamer.

Further update - the new expansion Aftershock is well worth playing if you enjoyed the base game. New weapons / enemies / vehicles / maps - whats not to like.