Boo! - Collection of kid-safe games from Bonus.com.

Carve-a-Pumpkin at PrimaryGames.com - Create your own Jack-O'-Lanterns with this java game.

3D Halloween Adventure - Trick or Treat through a 3D Halloween world solving puzzles using 3dml by Flatland.

Free Halloween Games - Offers holiday jigsaw puzzles, concentration, mah jong, and sokoban, plus a slider puzzle.

Kid's Domain Halloween Games - Large assortment of games and links to games suitable for children. Some require Java or Shockwave.

Monster Match - Open the doors to two crypts at a time to match the monsters hidden in them.

Thundercats Tomb of Mumm-Ra - Visitors help save the Thundercats from Mumm-ra, while avoiding memories hidden in the cavernous tomb. Requires Shockwave.