Please use Jarulf's guide for all your general Diablo 1 questions : http://www.lurkerlounge.com/diablo/jarulf/jarulf162.pdf
Ruleset is based on a simplified version of the Diablo iron-man rule set.
Basic Rules:
1. Brand new character enters the game of any class.
2. Only access to town services is at the start of the game or after completing Diablo on a respective difficulty
3. If you die the run is over
4. Player may not "backtrack" to earlier levels
5. You may not go to town for any reason except after completing diablo on a respective difficulty (after killing Diablo on normal, nightmare etc.)
6. Scoring is based on depth reacted in the levels 1-16, NM 1 would be marked as 17 etc. for a max of: 48 levels. In the case of a tie on a floor character experience gained is used as the tiebreaker.
7. Item duplication bugs are not within the spirit of iron-man, no duping!
8. No use of maphack tools.
9. Each bot gets 5 attempts. Total score is the total depth reached at time of death added together between the runs.
10. Game is made in multiplayer mode
11. Game is played on V1.09