This app was mentioned in 5 comments, with an average of 4.00 upvotes
Looks like Incremental Inc is just two guys. The most recent game was updated on the Google Play store in April this year, and they seem to be actively working on a new post-apocalyptic incremental game according to the Twitter feed. The last post was three days ago and it's looking pretty sweet!
Hey - I made that game!
Unfortunately my old laptop died and the code for Miner's Idle 3 and the key to be able to push updates to the game died with it :(
Currently putting all my time into Lumberjack Attack!
Yep, I included the links above. Here they are in full:
Play Store: https://play.google.com/store/apps/details?id=com.incrementalinc.lumberjackattack
Twitter: https://twitter.com/incremental_inc
Lumberjack Attack is at version 2.0.11 according to the Google Play store page as viewed from the UK. I'm not sure why Germany wouldn't get a full release, but they may have a reason for limiting the regions. I assume you're not running an old version of Android? I'm seeing five games made by Incremental Inc, including Miner's Idle 3, which requires Android 4.0.3. Lumberjack Attack is supposed to be compatible with Android 2.3 and up.
You could also try contacting them through Twitter or email them direct: