Crevasses – basically cracks in glaciers – are a type of dungeon I first encountered in the Secret of the Silver Blades, where they lead up to the evil Dreadlord’s castle. Cringeworthy as that sounds, I’ve always loved the idea of a band of adventurers exploring the bottom of crevasses – the combination of dangerous environment, bitter cold, and even unearthly beauty is quite potent. Snowy environments are also much neglected, in my opinion, so here’s the chance to kill two yetis with one chunk of ice.
The crevasses will be a fairly irregular mess. There are similarities with caves, but the passages will mostly be narrow and long. Lots of dead ends. A similar feature – ice caves – can offer larger, covered spaces.
Use: The crevasses is probably best used as an obstacle, or rather, a passage through an obstacle – the glacier. It could connect to one or more destinations. One trope is the hidden valley full of lush vegetation, warmed by magic or volcanic vents. Another the frozen castle or similar lair. Or turn it around – the crevasses are the only means of escape from the white dragon’s lair.
The crevasses also serve as a “man vs nature” subplot. Adequate equipment, food, and protection from the cold will be essential to the protagonist’s survival.
Enemies: Since the structures are of a fairly temporary nature, your adventurers won’t find much in the way of permanent settlements. Opponents will be related to cold – yetis, snow elementals, frost giants, ice mephits, you name it. Less fortunate adventurers who fell into the crevasses could now rise as frosted-over zombies, awoken by the warmth of the player characters’ campsite.
The Antarctic Snow Cruiser was a massive vehicle designed by Thomas Pulter in the late 1930s. Intended to facilitate transport in Antarctica, it was a failure: its smooth wheels were unsuitable for gaining traction in the snow and the vehicle’s weight caused it to sink 90cm into the snow. Ironically, the wheels produced more traction when the vehicle drove backwards. The snow cruiser was then used as shelter for the expedition before being abandoned. The start of World War II prevented further funding.
The snow cruiser was rediscovered twice; once in the 1940s – when it only needed air in its tires to become operational – and once in 1958. The fate of the snow cruiser is unknown; it is likely buried deep in the ice or sunk to the bottom of the ocean when the ice shelf it was left on split.
Use of the Snow Cruiser
The snow cruiser is an excellent gimmick for any type of campaign or story:
Discovering the Snow Cruiser could be an event/encounter in an Antarctic hex crawl. Wild animals or monsters could make their home in it, and perhaps some useful items were left in the vehicle.
Like the original, it could make the core of a makeshift base; it could even be used to hide the entrance to an underground base.
A working model may be used by secret agents in a Bond style adventure
Vehicles similar to the Snow Cruiser could be used on other planets in a Traveller science fiction campaign, presumably it would especially work on smaller, low gravity worlds.
In a steampunk or weird science setting, the snow cruiser may be even bigger than it actually was.
According to rumor the original Snow Cruiser was taken by the Soviets. This is almost certainly not true, but in your adventure or story this could very well be the case – Especially if some sort of classified information was left on board, or a secret technology used in the construction of the vehicle (perhaps a new type of nuclear battery or miniature fusion power plant in a Sci Fi context).