I have been maintaining a list of game ideas for a number of years, where I continually add new ones or go through and add notes from time to time.
The idea for Tormentis had been on this list as a concept idea for a number of years already. Before we started development, we spoke a lot with players of our previous games and presented our favorite game ideas and discussed them.
When the final decision was made we developed the core functions as prototypes to ensure that the core mechanics really work. The dungeon editor was a particular focus here.
"Tormentis" is a multiplayer action RPG game in which you have to design and continuously improve the defense of your own dungeon in order to prevent raids by other players, and on the other hand you try to plunder and conquer other players' dungeons with your own hero.
By playing other players' dungeons you collect trophies that count towards the current league season. At the end of each season, all participants receive rewards and unique decorative items that they can place in their dungeon. Not every piece of loot is needed by yourself and can be traded with other players via a barter system or an auction house, as long as it is not bound to the player by enchantments.
Tormentis is a classic action RPG like Diablo, but with less time requirements, as the core game consists of time-limited, completed dungeons. By designing the dungeons by players, there are tons of possibilities and challenges that are constantly being rebuilt and optimized. Both casual players and players who are looking for one challenge after another will find what they are looking for.