too manydifferentstat blocksin combatoverusesrule ofcooloverestimatingthe playersafraid totellplayersNOincoherentNPCmotivationsoveruseof timetravelnotsleepingbefore thesessionover-preppingfor thesessionno planforcampaignendmakingdeathmeaninglessexcessiveworldbuildingeverythingis a fetchquestdoesn'tread playerbackstoriesunderestimatingthe playersWAY tooambitiousneverwritesideasdowndoesn'tvet thecharactersheetsafraid totellplayersYESway toomuchexpositionabusing rulezero (DMalways hasfinal say)the DMforgettingthey're ALSO aplayer and theirfun matters atthe table tooDMPC's,generallyfocusingtoo muchon asingle PCrelies waytoo muchon improvtoo manydifferentstat blocksin combatoverusesrule ofcooloverestimatingthe playersafraid totellplayersNOincoherentNPCmotivationsoveruseof timetravelnotsleepingbefore thesessionover-preppingfor thesessionno planforcampaignendmakingdeathmeaninglessexcessiveworldbuildingeverythingis a fetchquestdoesn'tread playerbackstoriesunderestimatingthe playersWAY tooambitiousneverwritesideasdowndoesn'tvet thecharactersheetsafraid totellplayersYESway toomuchexpositionabusing rulezero (DMalways hasfinal say)the DMforgettingthey're ALSO aplayer and theirfun matters atthe table tooDMPC's,generallyfocusingtoo muchon asingle PCrelies waytoo muchon improv

Bad DM habits Bingo - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. too many different stat blocks in combat
  2. overuses rule of cool
  3. overestimating the players
  4. afraid to tell players NO
  5. incoherent NPC motivations
  6. overuse of time travel
  7. not sleeping before the session
  8. over-prepping for the session
  9. no plan for campaign end
  10. making death meaningless
  11. excessive worldbuilding
  12. everything is a fetch quest
  13. doesn't read player backstories
  14. underestimating the players
  15. WAY too ambitious
  16. never writes ideas down
  17. doesn't vet the character sheets
  18. afraid to tell players YES
  19. way too much exposition
  20. abusing rule zero (DM always has final say)
  21. the DM forgetting they're ALSO a player and their fun matters at the table too
  22. DMPC's, generally
  23. focusing too much on a single PC
  24. relies way too much on improv