Level design is where a game starts becoming a playable experience. It is not simply about placing buildings, trees, enemies, or walls on a map. A good level designer has to think about player movement, pacing, difficulty, exploration, combat encounters, navigation, storytelling, and performance.
The right level design tool can make this process much faster. It allows designers to create a rough layout, test it with the actual player character, identify problems, and iterate before spending too much time on final art.
There is no single best tool for every project. A 2D platformer, an open-world RPG, and a competitive FPS have very different level-design requirements.
1. Unreal Engine Level Editor
For high-end 3D games, Unreal Engine is one of the strongest choices.
Unreal's Level Editor is the primary environment for constructing gameplay levels. Designers can place and manipulate Actors, geometry, lighting, gameplay elements, and other assets directly inside the editor.
Unreal becomes particularly powerful when level design needs to work closely with:
- Blueprint visual scripting
- Landscape tools
- Lighting
- AI navigation
- Physics
- World-building systems
- Sequencer
- Large environments
For a large 3D production, having level construction and gameplay logic in the same environment can significantly reduce iteration time.
Best for: AAA-style games, FPS games, open-world games, cinematic environments, and complex 3D projects.
2. Unity + ProBuilder
Unity is another excellent option, particularly for indie developers and teams building cross-platform games.
One particularly useful tool is ProBuilder, which allows developers to create and edit custom geometry directly inside Unity. It is designed for in-scene level design, prototyping, collision meshes, and play-testing.
This is especially useful during the greyboxing or blockout stage.
Instead of waiting for final 3D assets, a designer can quickly create:
Walls
↓
Platforms
↓
Rooms
↓
Doors
↓
Combat Areas
↓
Player Path
The designer can then put the player into the level and immediately test whether the layout actually works.
Best for: Indie games, mobile games, cross-platform projects, prototypes, and teams already using Unity.
3. Blender
Blender is primarily a 3D creation application rather than a dedicated game level editor, but it is extremely useful in level-design workflows.
A designer can use Blender for:
- 3D blockouts
- Environment modeling
- Modular architecture
- Asset placement
- Terrain concepts
- Architectural layouts
- Custom environment assets
It is particularly useful when the level requires custom geometry that would be difficult to create directly inside a game engine.
However, I would not normally recommend using Blender as a complete replacement for the engine's level editor. Gameplay testing, prefabs, player movement, lighting, collision, AI, and game logic still need to be validated inside the target engine.
Best for: 3D environment creation, custom geometry, asset production, and advanced level prototyping.
4. Tiled
For 2D games, Tiled is one of the most useful standalone level editors.
Its workflow is based around tile maps, layers, objects, and map data. It is also engine-independent, which makes it attractive when the same level data may need to be consumed by different frameworks or custom engines.
A typical 2D workflow could look like:
Tileset
↓
Map
↓
Layers
↓
Objects / Entities
↓
Export
↓
Game Engine
Tiled is particularly useful for:
- Platformers
- RPGs
- Top-down games
- Puzzle games
- Strategy games
- Tile-based worlds
Best for: 2D tile-based games and engine-independent workflows.
5. LDtk
LDtk is another strong option for modern 2D game development.
It is particularly interesting for developers who want an entity-driven workflow rather than simply painting tiles. LDtk supports levels, entities, layers, and custom fields, making it useful for levels containing gameplay objects, triggers, enemies, spawn points, and other metadata.
This can be very helpful when the level contains lots of gameplay information.
For example:
Level
├── Player Spawn
├── Enemy Spawn
├── Door
├── Treasure
├── Trigger
├── NPC
└── Checkpoint
Best for: 2D indie games with entity-heavy level design.
6. Godot Editor
Godot is worth considering for developers who want an open-source game engine with an integrated scene and level-design workflow.
Instead of maintaining a separate level editor and game engine, developers can create scenes and gameplay directly inside the Godot editor.
This makes it attractive for smaller teams that want a relatively lightweight development environment.
Godot can be especially useful for:
- Indie games
- 2D games
- Prototypes
- Educational projects
- Open-source projects
- Smaller 3D games
The major advantage is the integrated workflow: the designer can create the level and immediately test it using the same engine.
7. TrenchBroom
For developers creating classic or modern FPS-style environments, TrenchBroom is an interesting specialized tool.
It uses a brush-based approach that is particularly well suited to designing corridors, rooms, walls, platforms, and other architectural spaces.
This makes it very useful during rapid blockout and iteration.
Rather than focusing on detailed environment art, the workflow emphasizes building the playable structure quickly.
Best for: FPS maps, retro-style games, and fast architectural blockouts.
8. RPG Maker
If the goal is to create a traditional RPG with maps, characters, events, dialogue, quests, and tile-based environments, RPG Maker can dramatically reduce the amount of technical work required.
The major advantage is that many common RPG systems are already integrated into the development environment.
That means a designer can focus more on:
- Map layout
- Story
- NPC placement
- Quests
- Dialogue
- Encounters
- Exploration
rather than building every underlying system from scratch.
Best for: Story-driven RPGs and beginners who want a faster route from idea to playable game.
The Importance of Greyboxing
One of the biggest lessons in professional level design is don't start with beautiful art.
Start with simple shapes.
For example:
Cube = Building
Plane = Floor
Cylinder = Pillar
Box = Enemy Cover
Arrow = Player Direction
Then test the level.
Can the player understand where to go?
Is the corridor too narrow?
Is the combat area large enough?
Can the player see an upcoming enemy?
Is the difficulty increasing naturally?
Does the level become boring after five minutes?
These questions are much cheaper to answer during blockout than after hundreds of hours of environment art.
Unity's level-design guidance similarly emphasizes blockouts, player pathing, pacing, gameplay beats, and rapid testing before finalizing environments.
What Makes a Good Level Design Tool?
From a practical development perspective, I would evaluate a tool using these factors:
1. Speed of Iteration
Can you change a room and test it within minutes?
2. Engine Integration
Can the level be tested using the actual player controller, physics, AI, and gameplay systems?
3. Collaboration
Can multiple designers and artists work without constantly overwriting each other's changes?
4. Performance
Can the tool handle the size of your game world?
5. Version Control
Can level files work reliably with Git or another version-control system?
6. Prototyping Support
Can you create a playable blockout without requiring final assets?
These factors often matter more than the number of features listed on a product page.
Final Thoughts
The best level design tool is ultimately the one that helps the team design, test, and iterate quickly.
For high-end 3D development, Unreal Engine is an excellent choice. For Unity-based projects, Unity with ProBuilder provides a strong workflow for rapid level construction and prototyping. For 2D games, Tiled and LDtk are excellent dedicated options, while Godot provides an integrated open-source workflow. Blender remains extremely valuable for custom 3D environment modeling and blockouts.
But the tool itself does not make a level good.
A strong level designer understands player flow, pacing, spatial composition, difficulty progression, navigation, sightlines, encounter design, and playtesting.
The best workflow is usually:
Idea → Greybox → Playtest → Iterate → Gameplay Validation → Art Pass → Optimization → Final Level
That iterative process is far more important than simply choosing the most powerful level editor.