I just realised that Magic Dosbox was limiting ram to 64mb even when I put higher in the config, I noticed this in my computer properties, so I went over to Dosbox Turbo and saw it was matching it’s relative config (256mb). I then dialled down memsize to 63 there and voila – it closed after the initial load just like in Magic.
Is it possible for me to increase the memory beyond 64mb? Preferably to 256:)