PREORDER NOW - Ships December 2025

Cofounder conflict is the leading cause of startup failure, accounting for 65% of early-stage company deaths. Yet most founding teams lack structured tools to address relationship dynamics before they become critical issues.

Cofounder Mode provides a systematic approach to the difficult conversations that determine whether founding partnerships strengthen or fracture under pressure.

What You Get:

70+ Research-Backed Conversation Cards

Each card is designed to surface assumptions, misalignments, and unexpressed concerns that typically remain hidden in operational meetings. The prompts draw from organizational psychology, conflict resolution research, and documented patterns from hundreds of founding team interviews.

Printed in the USA on premium cardstock for durability through years of use.

Multiple Game Modes for Different Contexts

The cards work whether you're establishing initial agreements, navigating growth transitions, or addressing emerging tensions.

Contributions from World-Class Experts

We've worked with leading researchers, psychologists, executive coaches, and operators to ensure every question is grounded in evidence-based practice. Contributors include behavioral economists from Duke, psychologists from UPenn, bestselling authors, Stanford professors, and founders who've built category-defining companies.

Names include Dan Ariely, Angela Duckworth, Jerry Colonna, Jason Fried, Lenny Rachitsky, and more. Full contributor list coming soon.

Why This Matters:

Research shows that 90% of cofounder conflicts stem from unspoken assumptions rather than fundamental disagreements. Regular structured conversations—as brief as 15 minutes monthly—create space to identify and address these gaps before they compound.

Unlike one-time exercises (like cofounder agreements or questionnaires), Cofounder Mode is designed for ongoing use. The format encourages natural dialogue rather than formal mediation, making it practical for teams at any stage.

Who This Is For:

• Founding teams at any stage (pre-seed through Series A and beyond)
• Cofounders who want to maintain alignment as complexity increases
• Teams navigating high-stakes decisions or external pressure
• Anyone who recognizes their partnership as either their greatest asset or greatest liability

PREORDER DETAILS:

• Limited first production run
• Printed in the USA
• Ships December 2025

The cost of one unresolved founder conflict far exceeds the price of preventative infrastructure. This is that infrastructure.