If you mainly need simple color, levels, and automatic adjustments, Affinity Photo is worth looking at. It has a fairly straightforward workflow once you get familiar with the basics, and it handles RAW and regular image editing well.
For painted miniatures, I’d also recommend keeping the...
Honestly, the Ultron concept fits Zombicide really well. The idea of using Ultron robots for different enemy types could also give the game a nice visual variety instead of just reskinning traditional zombies.
The “cables in the heads” idea would make for some really creepy miniatures too. I...
I’d be careful about assuming it’s officially out of print just from stores being unable to restock it. If multiple German retailers are getting the same answer from their suppliers, it could also be a temporary distribution or reprint issue.
I’d check the German publisher’s current catalogue...