System per source: Dread — the horror storytelling game resolved by pulling blocks from a Jenga tower, per the franchise's own "Sagas of Sundry: Dread" branding for both this original International Tabletop Day one-shot and its Madness follow-up (a different, D&D-based season, "Goblin Mode," came later).
Traycee King producer 
Jason Charles Miller — billing unknown composer 
Ivan Van Norman GM/DM 
Darin De Paul player as Mr. Wren