‍1. Dungeons & Dragons (D&D): The granddaddy of all tabletop roleplaying games, Dungeons & Dragons has been a cornerstone of the RPG world since its inception in the mid-1970s. The allure of D&D lies in its potent combination of magic, dragons, combat, and a myriad of fantastical elements, all woven into an immersive fantasy setting. With the game master or 'dungeon master' orchestrating the narrative, the players have the freedom to play out their roles as mighty warriors, cunning rogues, or powerful sorcerers. The third edition of D&D, with its comprehensive rules and intricate mechanics, holds a special place in the hearts of veterans, while the fifth edition is more streamlined, making it appealing to new players. It's easy to tailor a D&D adventure to suit the Halloween season, whether it's a haunting in a haunted mansion or a terrifying quest to vanquish a necromancer. The fantasy elements and magical powers inherent in the game only add to the spooky ambiance.

2. Pathfinder Second Edition: As a direct competitor to D&D, Pathfinder offers a fantasy roleplaying game experience that is both immersive and exhaustive. It boasts a more intricate rule system, ensuring detailed character development and a complex action economy. The second edition of the game builds on the existing rules of the first, enhancing gameplay for the players and providing an exciting challenge for the game masters. A Halloween-themed Pathfinder adventure could involve tracking a deadly werewolf or vanquishing an army of the undead. Given Pathfinder's rich lore and intricate rule system, the opportunities for spine-tingling tales are virtually endless.

3. World of Darkness: If you're after a game steeped in modern supernatural fantasy, World of Darkness is the one to pick. Players can create characters such as vampires, werewolves, or mages, immersing themselves in a Gothic, horror-filled world that's a far cry from the traditional high-fantasy of most games. This makes it an excellent choice for a Halloween gaming session, as World of Darkness' darker themes perfectly align with the season.

4. Brindlewood Bay: This is a murder mystery game with a twist. Players assume the roles of elderly women who are members of a local murder mystery book club. However, their quiet life is disrupted by actual murders, and they take it upon themselves to solve these mysteries. The game, designed by Jason Cordova, is known for its intriguing character development and narrative-driven game sessions. With its eerie undertones and classic whodunit premise, it's an ideal game for a chill Halloween night.

5. Blades in the Dark: In this game, the players are part of a criminal gang in the grimy, haunted city of Doskvol. Inspired by Victorian-era London and industrial fantasy, it presents a dark and gritty world, where the line between life and death is blurred. With mechanics that delve into the psychological impact of their life of crime on the characters, it is an excellent choice for a suspense-filled Halloween game night.

6. Star Trek Adventures: For fans of science fiction, Star Trek Adventures will be an instant hit. This RPG invites you to explore the final frontier and boldly go where no man has gone before. Although sci-fi may not seem traditionally spooky, the Star Trek universe is filled with weird and wonderful alien races, derelict space stations, and alternate realities that can be turned into thrilling Halloween adventures. The game system is intuitive, placing a strong emphasis on narrative and character development rather than complex rules, making it a hit among both Trekkies and RPG enthusiasts.

7. Apocalypse World: This post-apocalyptic roleplaying game puts players in a world devastated by some unknown calamity. With its emphasis on narrative and collaborative storytelling, it provides players with the opportunity to navigate the ruined world's dangers. Apocalypse World's gritty, survival-centric setting makes it a fitting choice for a spooky, atmospheric Halloween game night.

8. The Quiet Year: This innovative, map-drawing game depicts a post-apocalyptic community struggling to rebuild. The game emphasizes community decision-making and world-building, rather than individual character creation. The tension of surviving in a world where resources are scarce and threats are ever-present creates a distinct eeriness that can lend itself beautifully to the Halloween theme.

In addition to these fantastic games, there are more games from companies like Evil Hat Productions that offer unique, story-rich RPGs. Their FATE Core System, for instance, is adaptable to any setting – fantasy, modern, sci-fi, or horror – making it a flexible choice for any Halloween-themed story.

From ancient dungeons to the darkest corners of space, every role-playing game brings its unique touch to your gaming group. Whether your preference leans towards high-fantasy, modern supernatural, or post-apocalyptic worlds, there's a game to elevate your Halloween experience. Each game system, each world, each character, and each adventure offer an opportunity for an unforgettable story, heightened by the thrill of the spooky season. Whether you're rolling dice in a fantasy setting or orchestrating a tale of suspense in the Star Trek universe, the Halloween spirit will undoubtedly amplify the experience. So gather your friends, prepare your game masters, and let the Halloween role-playing begin! After all, Halloween is the perfect excuse to dive into more games and explore new worlds. Happy gaming!