Not really minimal, but brilliantly produced and dark as f… …one of my alltime favourite techno albums: L.S.G. - The Black Album from 1998.
And there’s also Speedy J - Loudboxer (2002), from a time when he rocked on his Yamaha SU700 loop samplers. The album starts on a minimal level and grows to a huge techno trip.
Edit: But you said you don’t like the heavier side, sorry.