GDevelop’s no-code event system makes it easy to start building immediately — which is also why beginners hit specific walls that are almost invisible when you’re inside them. These aren’t “I forgot a condition” bugs. They’re workflow-level mistakes that send you debugging in the wrong direction for hours.
Here are three I’ve run into firsthand, with the fixes that actually work.
1. The Sprite Scaling Trap
GDevelop lets you resize any object in the editor. Take a 1024×1024 image, scale it to 64×64, looks fine — ship it. Except under certain conditions (scene transitions, event triggers, preview refreshes), the sprite can revert to its original dimensions at runtime.
Why this wrecks your game:
Say you have a checkpoint object scaled down to fit a single tile. Your event says “Create player at the center of Checkpoint.” Logic is correct. But if the checkpoint reverts to its native size for even one frame, the center point shifts — and your player spawns three tiles away, inside a wall, or off-screen entirely.
Why it’s hard to debug:
You’ll instinctively look at your event sheet for a logic error. You’ll rewrite conditions, add debug text, question your sanity. The bug isn’t in your events — it’s in your assets folder.
The fix: Size your sprites to their in-game pixel dimensions in an external editor (Piskel, Aseprite, Photoshop) before importing. Don’t rely on GDevelop’s scaling for core gameplay objects. This keeps collision masks, center points, and spawn positions consistent.
2. Following Experts Instead of Beginner-Plus Creators
Counterintuitive, but important. GDevelop experts show you the cleanest, most elegant implementations — and they skip the “obvious” steps that trip beginners up because they’ve forgotten those steps exist. Curse of knowledge.
A creator who’s only a few months ahead of you is still navigating the same walls you’re about to hit. Their solutions might not be the most optimized, but their process of identifying and solving beginner-level traps is far more useful when you’re starting out.
How to balance it:
Experts → technique. Learn how to structure a project, use advanced features, understand best practices.
Beginner-plus creators → traps. Watch for the mistakes they make and how they recover. That’s where your actual learning happens.
Always focus on “why.” If a tutorial says click a button, understand why that button matters before moving on. Copying events you don’t understand means you can’t fix them when they break.
- The Grand Vision vs. The Micro-Project
Everyone starts GDevelop because they have a dream game — a sprawling RPG with an inventory system, skill tree, and 20-hour story. Trying to build that as your first project is a fast track to burnout.
How scope creep kills you:
You start with a simple platformer. Then it needs a double jump. Then a wall slide. Then a shop system. Suddenly you’re managing a project a 50-person studio would struggle to ship. When something breaks, you can’t fix it because you didn’t build the system — you copied it from a 45-minute tutorial you half-followed.
The “one mechanic” rule:
Treat every mechanic as its own micro-project:
Build it — Create a square that jumps when you press a key.
Break it — Change gravity, tweak jump sustain, see what happens.
Fix it — Prevent infinite mid-air jumps.
Move on — Next mechanic: coin pickup, respawn trigger, enemy patrol.
By keeping scope tiny, you understand every single event in your project. The build-break-fix cycle is where real learning happens. Those micro-projects eventually combine into a full game — except now you actually understand every piece of it.
TL;DR Mistake & Fix
Scaling sprites inside GDevelop / Size them in an external editor before importing
Only following expert tutorials / Add beginner-plus creators who still hit the same walls you do
Starting with your dream game / Build one mechanic at a time — build, break, fix, repeat
Every expert was a beginner who kept building. Keep your projects small, your sprites sized correctly, and your learning focused on the “why.”
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