Ah great, I use a VST for these kind of effects,
Replika XT. You just take sample or a VST as input and it sounds totally weird but is great for space soundscapes or drone effects. And for 99 Euros it's not very expensive but very useful for many situations where you need a special kind of reverb.
Attached is an example I've just created, two very old Samples from the ST-01 disk (Amiga), the DigDug and the HooMan. The note C-1 is played only once, one version with Replika disabled and one with the "Sigma Draconis" preset enabled. Hear the difference.