Get Your Personalized Game Dev Plan Tailored tips, tools, and next steps - just for you.

This page may contain affiliate links.

Beginner to Pro: Journaling for Iterative Game Design

Posted by Gemma Ellison
./
July 31, 2025

Beginner to Pro: Journaling for Iterative Game Design

Iterative design is the heart of modern game development. It’s about building, testing, learning, and repeating. But without a proper record, iterations can feel like running in circles. Documenting your design process transforms those circles into a spiral of continuous improvement.

How Journaling Supports Iterative Design

Think of a design journal as your game’s development diary, a place to chronicle the evolution of your project. I like to think of this as “patch notes” for the design itself. This approach helps capture changes, identify issues, and celebrate successes.

Let’s see how this works with a fictional example.

Fictional Dev: Alex (Solo Indie Dev)

Alex is working on a roguelike deckbuilder. Without a journal, features kept piling up, and the core gameplay loop became muddled. They decided to implement a “patch notes” style journal.

Example Journal Entry:

  • Date: 2024-10-27
  • Feature: Mana System Overhaul
  • Changes:
    • Removed mana regen.
    • Introduced “Mana Crystals” as a resource that drops from enemies.
    • Increased card costs.
  • Reasoning: Early playtests indicated players felt constrained by the slow mana regen, leading to passive turns. The goal is to encourage more aggressive play and resource management.
  • Next Steps: Observe player behavior during the next playtest to determine if the increased card costs create a new bottleneck.
  • Concerns: Potential for “feast or famine” scenarios with Mana Crystal drops.
  • Successes: Initial feeling of faster pace.

This entry captures the “why” behind the changes, the expected outcome, and potential risks. It’s far more useful than simply noting “Implemented new mana system.”

Common Mistakes to Avoid:

  • Not being specific enough. “Tweaked combat” is useless. Quantify the change and explain its purpose.
  • Not dating entries. Time context is crucial for understanding the evolution of ideas.
  • Focusing too much on tasks instead of design decisions. “Fixed bug #42” is less valuable than “Fixed bug where X mechanic was unintentionally interacting with Y, undermining the intended difficulty curve.”
  • Treating it like a chore. Make it part of your creative flow.
  • Not reviewing old entries. Regularly revisit past decisions to identify recurring problems and refine your understanding of the game.

Actionable Steps for Implementing a Design Journal (“Patch Notes”)

Here’s a step-by-step guide to integrating a design journal into your iterative process.

Step 1: Setting Up Your Journal

Choose a format that suits you. Physical notebooks are great for tactile thinkers. Digital documents (Google Docs, Notion) offer searchability. Dedicated journaling tools can provide structure and automation.

Establish naming conventions for features. Be consistent. For example, "Combat_System_V1", "UI_MainMenu_Redesign".

Define categories. Mechanics, UI, Art, Sound, Level Design. This categorization allows you to quickly filter and analyze information.

Step 2: Documenting Design Decisions

Explain why you made a choice. What problem are you trying to solve? What alternatives did you consider? What outcomes do you expect?

Example:

“Increased enemy projectile speed by 15%. Playtesters were consistently dodging projectiles too easily, making combat feel less challenging. Considered increasing enemy damage, but that felt less skill-based and more punishing.”

This level of detail transforms your journal from a simple log into a powerful resource for future decision-making.

Step 3: Tracking Playtest Feedback

Document player feedback verbatim. Note patterns. Translate feedback into actionable tasks.

Don’t just write “Players found the combat difficult.” Instead:

“Three out of five playtesters stated that the enemy attack telegraphs were too subtle. Two playtesters felt overwhelmed by the number of enemies on screen at once. Actionable tasks: 1. Increase the visibility of enemy attack telegraphs (e.g., brighter colors, clearer animations). 2. Reduce the maximum number of enemies that can be active simultaneously in the first level.”

Prioritize the actionable items in your journal. Use the journal to evaluate the impact of each task on the core gameplay loop and prioritize accordingly.

Step 4: Prioritizing Tasks

Your journal is not a to-do list. It’s a strategic guide. Every task should tie back to a design goal documented in your journal.

Ask yourself: “How does this task contribute to the core gameplay loop?” If the answer isn’t clear, reconsider its priority. This prevents feature creep and keeps you focused on what truly matters.

This highlights how the journal prevents the backlog from becoming an unprioritized list. Your backlog is simply your collection of possible improvements, but your roadmap consists of the tasks that actively address core design principles and player feedback (as documented in your design journal).

Ready to level up your iterative design process? Start tracking your game dev progress and streamline your design process with our intuitive game development journal tool.

Iterative Design is Ongoing

Iterative design isn’t a one-time setup. It’s a continuous cycle of building, testing, and learning. Your journal is your constant companion.

It supports future decisions. Cutting features becomes easier when you have a clear record of their impact (or lack thereof). Changing the game’s direction is less daunting when you can trace the evolution of your design and understand why certain paths were explored. Identifying flaws becomes more efficient when you can analyze patterns in your playtest feedback and correlate them with specific design decisions.

Conclusion

A design journal, implemented in the style of "patch notes", is an invaluable tool for any game developer. It provides clarity, focus, and a historical record of your creative journey. By documenting your decisions, tracking feedback, and prioritizing tasks based on your core gameplay loop, you’ll transform your iterative process into a powerful engine for building better games.