The concept is very good,very smooth to play and quite fun.The only downsides I see is that sometimes a horde of mobs unleash and you get to fight 6-8 bots at the same time which is impossible to handle.I don't know if staying in the initial map would avoid this hardcore mobs horde so I can stuff myself before exploring or nope.Also do mobs spawn randomly or there have a respawn time in each map?