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Why are there so many bad horror games?
(hexbear.net)
Tabletop, DnD, board games, and minecraft. Also Animal Crossing.
3rd International Volunteer Brigade (Hexbear gaming discord)
Rules
Extremely easy to make: Dark Environment + 1 Enemy = Basic Mascot Horror. This means anyone with even basic modeling ability can make a horror game.
Horror is also extremely popular amongst younger folk. I'd say a good portion of horror games are started as a fan game in high school.
If you're the creator of IMSCARED you don't even need to model!