Familiar Yet Fresh: Core Mechanics#

ICRPG builds on recognizable foundations while simplifying complexity. Characters possess the traditional six ability scores, expressed as straightforward bonuses similar to those found in modern D&D editions. The game introduces a whimsical yet practical movement system using “bananas” as measurement units for tabletop miniatures, with a full movement playfully called a “double-banana move.”

Characters begin with a defense value of 10 and 10 hit points, creating a baseline that’s both fragile and exciting. While bioform and class options provide initial direction, the true power progression comes from loot discovered during adventures—a design philosophy reminiscent of classic adventure games like The Legend of Zelda.

Revolutionary Target Number System#

One of ICRPG’s most innovative features is its approach to difficulty checks. Game Masters set a single target number for entire scenes, broadcasting it openly to players. This target—typically 12—serves as the DC for all actions within that scene, whether attacking monsters, picking locks, or scaling walls.

The target number shifts up or down by three points for hard or easy tasks, creating a simple yet effective difficulty gradient

This system transforms as adventures progress. The final rooms leading to a boss battle might have a base target of 15 instead of 12, automatically increasing the tension and difficulty of all actions in that climactic scene.

Attempts and Effort: Beyond Pass/Fail#

ICRPG distinguishes between immediate checks and attempts that build over time. While checks handle instant outcomes like jumping gaps or resisting trips, attempts manage actions requiring sustained effort.

The effort system uses four damage types:

• Basic Effort (d4): Desperate actions and improvised weapons
• Weapon Effort (d6): Standard weapons like swords and bows
• Magic Effort (d8): Enchanted items and spells
• Ultimate Effort (d12): Critical hits and special abilities

This system extends beyond combat. Lock picking becomes a tense race against time as thieves chip away at a lock’s “hit points” with magic effort, while sages frantically research antidotes using basic effort as danger approaches.

Death with Drama#

When characters drop to zero hit points, they roll a d6 to determine how many rounds remain before death claims them. During this time, they can only gasp their final breaths—unless they roll a natural 20 and miraculously spring back with one hit point. Allies can attempt rescues, making successful checks while dramatically shouting encouragement to drag fallen comrades back from death’s door.

Diverse Settings and Classes#

Beyond the standard fantasy realm of Alfheim with its Shadow and Hunter classes, ICRPG provides complete settings for:

• Warp Shell: Dystopian sci-fi adventures
• Ghost Mountain: Weird western tales
• Vigilante City: Dark superhero narratives
• Blood and Snow: Gritty prehistoric survival

Each setting comes with tailored classes and thematic elements that maintain the core system while offering vastly different play experiences.

Master-Class Game Mastering#

The Master Edition delivers exceptional game mastering guidance that surpasses many mainstream offerings. The book presents cohesive, clearly articulated methodologies with refreshing directness, offering practical scenario design principles that elevate any game master’s craft.

Creator-Friendly Licensing#

ICRPG’s approach to third-party content stands in stark contrast to restrictive industry practices. The Runehammer license actively encourages creation and monetization of supplemental content with minimal restrictions:

• Create and sell ICRPG content freely
• No royalties or fees to Runehammer
• Simple attribution requirements
• Permanent, non-revocable licensing promise

The growing ICRPG Community Content page consolidates creator works, while the active Discord community and Runehammer Patreon provide ongoing support and resources.

Key Takeaways#

• ICRPG offers familiar RPG concepts with streamlined, innovative mechanics
• The universal target number system simplifies game mastering while maintaining tactical depth
• Loot-based progression creates exploration-focused gameplay reminiscent of video game adventures
• Multiple genre settings provide diverse play experiences within one system
• Creator-friendly licensing encourages a thriving third-party content ecosystem
• Exceptional game mastering advice elevates the entire tabletop experience

A New Chapter for Tabletop Gaming#

Index Card RPG represents more than just another fantasy system—it’s a philosophy of play that values clarity, creativity, and community. For groups seeking faster combat resolution, more dramatic tension in non-combat challenges, and a system that rewards exploration over optimization, ICRPG delivers an experience that feels both nostalgic and revolutionary.

Content creators particularly benefit from the system’s openness and the community’s enthusiasm for new material. With straightforward mechanics that leave room for innovation and a license that truly supports creators, ICRPG offers fertile ground for those looking to contribute to the tabletop gaming landscape.

Whether you’re a game master tired of rules complexity, a player seeking more dynamic progression, or a creator looking for an engaged audience, Index Card RPG provides the tools and community to make tabletop gaming more accessible, exciting, and creatively fulfilling.

Related Topics#

• Tabletop RPG alternatives to D&D
• Rules-light RPG systems
• Loot-based character progression
• Open gaming licenses
• Multi-genre RPG systems
• Narrative-focused game mechanics
• Community content creation for TTRPGs
• Streamlined combat systems
• Scene-based difficulty mechanics
• Third-party RPG publishing