I was going through the core books of 3.5 and 4th Edition D&D Rule books and came across the random encounter tables.
Wouldn't it be great if Arctic has a zone that implements that encounter table? I imagine it would almost be a Diablo clone type of zone. Here is an example of some tables from Pathfinders (3.5e rules)
http://www.d20pfsrd.com/bestiary/indexes-and-tables/encounter-tablesEach dungeon level (heading down the sewer of a city on top of a mountain) contains random set of mobs (with equivalent mob level). For example, dungeon level 1 will have a list of possible level 1 mobs (from the table). The number of groups of mobs and type of the mobs will be decided at each repop of the zone level.
Any player that goes through the dungeon will expect random mobs to kill and survive. When more than 1 player enters the a particular level, the quota of random mobs will increase in the next few min. For example, mobs will have a chance to pop every min until the max group has reached. When a player dies or leaves the dungeon level, there will be a chance for the mobs to "disappear". This way, you won't have over crowded mobs in any dungeon level.
So, since Arctic has 30 levels, this zone would have 30 dungeon levels. Each dungeon level will have a level generator that includes basic rooms, and staircases joining the adjacent levels. The dungeon levels are static per reboot. The mobs in each level aren't, as explained above. Mobs will enter the dungeon, roams around, and leave the dungeon after a while. As far as monsters encounter are concern, you won't ever find the same mobs combination.
To make things interesting, "good" mobs and "evil" mobs may appear at the same time. They may "attack" each other in the same room and players might take sides helping one group or the other group. Or players may kill both groups for glory and treasure.
In short:
1. Purely hack and slash style zone.
2. Always random encounters to keep things fresh.
3. Players know their limit (ie level 15 players should roam until dungeon level 15 and not more)
4. Consider this zone an attraction to D&D players and Diablo style players.
5. Gives imms a chance to have a go at random map generator. And hopefully random equipment generator.