Hackers Guild Membership

Joining

Buying the game is joining the guild. You can buy the game here.

Full Dungeon

You can access the full dungeon once you have guild membership. On iOS and Android, the membership is per class pair (eg. both Fighters, both Good Mages, etc.), while on other platforms it is all-or-none. This allows for a lower price on mobile, especially good if you just want to play your one or two favourite characters on-the-go.

Achievements

The game keeps track of your progress towards a number of rather hard achievements. These aren't "well done, you reached level 2"-style achievements.

Achievements are local to the computer you run the game on.

Multiplayer

Multiplayer is not available in the mobile version at this time.