Thread:Deathstalker666/@comment-1496755-20160820115218/@comment-1496755-20160830113740

Those red eyes! And that creepy resonating voice! Jagar Tharn could make a great metal band vocalist :P

I think the problem is poor memory allocation and management - many old games suffer from that, but Arena seems to be exceptionally good at it. Most other DOS games would give you a memory error at start, but then would behave nice if you solve the problem (or, in some cases, would cause problems when you try to load a saved game). Arena does the opposite - always starts properly but is prone to collapse after prolonged periods of playing. So you never know when to expect trouble.

Apart from colors, the layout also has some major differences - the temple is more compact and most areas seem meaningful, while Stonekeep had a a bunch of pointless tunnels and waterways, as well as something maze-like occupying the entire southern portion of the map.