Cairn Fantasy; Dark Fantasy; Exploration-Driven; Survival; Rules Lite; Collaborative Worldbuilding

Cairn is a rules-light, Old-School Renaissance (OSR) tabletop roleplaying game focused on exploration and character customization within a dark fantasy setting. It draws inspiration from Knave and Into the Odd, offering a streamlined experience designed to be both beginner-friendly and appealing to experienced OSR players. Its unique inventory-as-armor system and emphasis on player agency distinguish it from other games in the genre.

Theme and Setting

Cairn immerses players in a dark and mysterious Wood, a region teeming with strange inhabitants, valuable treasures, and horrifying monstrosities. The setting is designed to evoke a sense of danger and the unknown, encouraging players to proceed with caution and resourcefulness. The implied setting allows Wardens (Game Masters) significant freedom to customize the world, drawing inspiration from various dark fantasy sources. The game's tone is decidedly grim, focusing on survival and the consequences of venturing into the perilous wilderness. Many adventures and resources are available online to use in the game or to convert adventures from other systems.

Core Mechanics and Rules

Cairn's core mechanics are intentionally simple, adhering to the OSR philosophy of rules-lite gameplay. Character creation is quick and random, eschewing traditional classes in favor of backgrounds that offer narrative flavor.

  • Stats: Characters typically have only three stats: Strength, Dexterity, and Willpower.
  • Saves: Saving throws are streamlined, requiring players to roll under their stat when faced with danger.
  • Inventory: A key element is the inventory-as-armor system, where each item carried occupies a slot and reduces the character's ability to carry more. Armor is treated as inventory, offering a trade-off between protection and encumbrance.
  • Combat: Combat is fast and deadly, emphasizing player skill and tactical decision-making over complex rules. The Warden makes most of the rulings.
  • Advancement: Character advancement is based on fictional achievements rather than experience points, encouraging players to engage with the game world and pursue their own goals.

What Makes Cairn Unique

Several aspects distinguish Cairn from other OSR games:

  • Inventory-as-Armor: This elegant system ties character defense directly to resource management, forcing players to make tough choices about what to carry.
  • Rules-Light Design: Cairn strips away unnecessary complexity, focusing on player agency and Warden improvisation. The minimalistic ruleset allows for easy adaptation and customization.
  • OSR Compatibility: Cairn is designed to be easily compatible with adventures and supplements from other OSR systems, providing a wealth of existing content for Wardens to draw upon. It's very easy to convert monsters and settings.
  • Community Focus: The game values community contributions, encouraging players to create and share their own adventures, hacks, and resources. A large and active community creates a huge amount of content.

Target Audience and Player Experience

Cairn is aimed at players who enjoy:

  • Exploration-driven gameplay: The game emphasizes venturing into the unknown and discovering hidden secrets.
  • Dark fantasy settings: The grim and perilous world of Cairn appeals to those who prefer a more mature and challenging experience.
  • Rules-lite systems: Players who value player agency and improvisation over complex rules will find Cairn appealing.
  • OSR games: Fans of classic tabletop RPGs and the OSR movement will appreciate Cairn's streamlined mechanics and focus on old-school sensibilities.

The player experience is one of constant tension and resource management. Every decision carries weight, and survival depends on careful planning and tactical thinking. The game rewards clever problem-solving and creative use of resources, making for a deeply engaging and rewarding experience.

Cairn logo

What do players think?

The user appreciates the game for its fantastic and character-rich content. However, they suggest the introduction of a new mobile pdf format to enhance the reading experience on phones.

Related TTRPG Games

Compare Cairn with other great ttrpg games.

Knave logo

Knave

Both Knave and Cairn share a focus on exploration and survival within a simple, rules-lite framework, emphasizing player agency and creativity. However, Knave is classless and leans more into tactical combat and traditional fantasy elements, while Cairn adopts a more narrative-driven approach with a focus on environmental storytelling and survival mechanics; for example, while Knave uses minimalistic character creation with attributes and abilities, Cairn encourages players to interact with their environments through guided narratives and unique tags for items and abilities.

Old-School Essentials logo

Old-School Essentials

Old-School Essentials and Cairn both embrace the principles of classic tabletop RPGs, focusing on exploration and resource management within a fantasy setting, yet they differ in play style and mechanics; while Old-School Essentials retains a class-based structure with a greater emphasis on detailed character customization and tactical combat, Cairn simplifies character creation and prioritizes a more narrative-driven, freeform approach to gameplay, encouraging improvisation and collaborative storytelling. For example, Old-School Essentials uses traditional classes like fighters and wizards, whereas Cairn offers a more minimalist system where characters are defined by their skills and backgrounds without rigid class restrictions.

Mork Borg logo

Mork Borg

Mork Borg and Cairn share a focus on bleak, narrative-driven exploration within dark fantasy settings, both embracing the Old-School Renaissance style. However, while Mork Borg emphasizes innovative mechanics and a heavy sense of impending doom with its chaotic gameplay, Cairn offers a more minimalist approach that favors streamlined rules and exploration-focused mechanics, exemplified by Cairn's use of a simple action system compared to Mork Borg's more complex character deterioration effects.

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