IsoBoom has just been updated to version 1.4 !
It's a very small update although a real treat for artistic profile enthusiasts.
Changelog:
- Minor bugfixes / performance fixes.
- Added full alphabet + 0-9 digits + other cool symbols as achievements in 2 color schemes. The symbols have 25% chance to drop from wooden crates destroyed with bombs. You can then use those achievements for your steam showcases. The achievements can also be unlocked in the same manner on custom maps.