A five level follow up to the Osterburg Adventure. This one IMO is much better. Careful attention has been placed to lighting details and flow. Although I found myself wondering why I was taking certain routes, it still proved interesting enough to make me keep coming back for more. Lots of baddies and a unique shapes patcher that allows for some other "Marathon visited times" to stir your memory. A few bugs in this one, but worth the adventure. Some texture problems here and there but, fairly well done. Keep going back to check for things that have changed if you get stuck.