


The plot is pure cheddar - 30 seconds into the first cut scene I said to Heather "Oh look, I've got a brother - he's going to die so I can avenge him". There's even a pretty (yet smart/ brave) blonde love interest with a plumy accent. It's nowhere near as immersive as Fallout/ Oblivion/ GTA4...
...however it's so much fun I don't care...
...the gameplay revolves around shooting people, blowing things up, driving irresponsibly, and smashing into things - and it's great. There's nothing quite as satisfying as driving full tilt into the bottom storey of a 3 storey building in a piece of construction machinery, jumping out, setting charges, and demolishing the whole building.
You can purchase weapon upgrades to suit your gaming style and the sandbox/ open ended missions generally allow you to be as creative as you want to. Note: Smashing through the wall of a jail to rescue a prisoner doesn't work if you drop the wall on them in the process

The sandbox is carefully designed to limit your travel by making Mars consist almost entirely of big impassable rocks and mountains plus the landscape is pretty monotonous so getting from point A to point B often involves a tiki tour through points C, D and E - all of which looks fairly damn similar.
Overall it's a lot of fun to play right now but I don't know if I'll be married to it for 100 hours solid like other games.