I'm trying to find a tabletop RPG system probably from the late 2000s. I have seen people running around with "game tester" tshirtst-shirts in 2014+ in Germany, during my studies in Nuremberg, so the date must be close to that.
The game was published either in German or English, I tend to confuse the two.
I mostly remember the manual that I had downloaded back then, 300+ pages pdfPDF with heavy use of black and white formatting.
The setting was steampunk centric, with small robots and a victorianVictorian society, but also non-human characters (spider-humans of sorts?). The world was established on fragments of planets, with gravity erratic towards the edges of the shards. I believe you could travel between different planetary fragments with ships.
There were some sort of soul-eating mechanism, the game revolved around gathering your soul shards and rebuilding your soul.
In terms of game mechanics, I believe it was based on 2d calculations, where you would have a number of 50% changes on each roll and the sum of positive rolls determined the outcome. (something akin to: roll 6d6, all even numbers count towards the outcome? I'm hazy.)
In my mind the game's name contained some variation of "opus" or "opera", but a search on wikipedia'sWikipedia's list of tabletop games does not return anything.