Squirrel-O-Ween at the Diamond: It's a family-friendly night of hayrides, trick or treating, games and costume contests. 5 to 8 p.m. Free.
Halloween Bash at Quirk Hotel: An "Alice in Wonderland"-themed party featuring music, dancing, food stations, Maple and Pine chefs preparing minidishes and DJ Ant Boogie. Wonderland attire encouraged. 7 p.m. to midnight. $20 in advance, $30 day-of the event.
Gallery5 Halloween Party featuring the bands Haircut, Unmaker ("Firmament" album release party), Alfred and Spooky Kool, and DJ Julie. 7 p.m. $5 in advance, $10 at door.
Babe's Hypercolor Halloween Karaoke and Dance Party featuring DJ Ben Speed and DJ Devolved. Costumes encouraged. 7 p.m. to 2 a.m.
Nightmare on Broad Street 6 at Coalition Theater: First off at 8 p.m. a screening of "Troll 2" then at 10 p.m. free werewolf game night. For information visit rvacomedy.com.