Stop Fighting Other Engines.
Start Creating Games.

Name: Cave Engine
Rating: 4.8 (300 reviews)
Author: Uniday Studio

Instant Iteration • Zero Royalties • Zero Shader Compilation

While Unity or Unreal developers wait 10 minutes for shaders to compile,
Cave developers are already playtesting their game.

See Plans & Pricing

Choose between lifetime license or subscription

Trusted by 300+ developers worldwide

40+ Countries

Growing Community

Featured in Jams

Also available on Itch.io

INSTANT START

From Zero to Playable in Seconds

Watch this 18-second clip showing the complete process: open Cave, create a new project, and hit play.

Instant Project Templates

Animated character, terrain, skybox, ui, enemies: all included!

No Setup Required

Start creating games immediately, no configuration needed

Production-Ready

Built by professionals, used in commercial games

How Cave Compares to Other Engines

See why developers are switching from Unity, Godot, and Unreal to Cave Engine

Feature	Cave Engine	Unity	Godot	Unreal
Shader Compile Time	Instant	5-30 min	1-10 min	10-60 min
Code Compile Time	Instant	2-10 min	5-30 sec	5-30 min
Iteration Speed	Instant feedback	Slow	Moderate	Very slow
Royalties	0% Forever	0%*	0%	5% after $1M
Hidden Costs	None	Asset Store, Cloud	None	Marketplace, Cloud
Scripting Language	Python	C#	GDScript	C++/Blueprints
Learning Curve	Very Easy	Moderate	Moderate	Steep
Engine Size	< 50 MB	1-5 GB	100-300 MB	30-50 GB
2D Bloat in 3D Projects	No	Yes	Yes	No
Developer Support	Included	Community only*	Community only	Forum only*
Dev Team Uses Own Engine	Yes	No	No	Yes
You're Not a Test Subject	Production-proven	Public beta	Public beta	Production-proven

* Unity & Unreal hidden costs: Asset Store dependencies ($$$), cloud build services ($$$), marketplace fees, and the massive opportunity cost of waiting for compilation.

* Unity pricing uncertainty: Unity announced runtime fees in 2023 (later partially reversed) - pricing uncertainty remains.

* Unity/Unreal support: Official support available at enterprise pricing ($$$).

Only Cave includes direct developer support in the base license.

See Pricing Options

Lifetime license or monthly subscription

Why Indie Developers Are Switching to Cave

Developers from Unity, Godot, and Unreal are making the switch. Here's why.

From Unity

Why Unity devs are leaving

Tired of shader compilation waits
Frustrated by C# complexity for simple tasks
Concerned about future runtime fees
Massive engine size and slow startup
Switched to Cave for instant iteration and Python simplicity

From Godot

Why Godot devs are upgrading

GDScript is confusing and limiting
Node system is overcomplicated
Still has shader compilation delays
Slower iteration than expected
Shipped with 2D bloat for 3D projects
Switched to Cave for TRUE simplicity, Python power, and instant feedback

From Unreal

Why Unreal devs are downsizing

Blueprint spaghetti for complex systems
50GB+ install size and slow startup times
Royalty fees (5%) cutting into profits
Overwhelming complexity for indie projects
Switched to Cave for lightweight speed and zero royalties

The Pattern Is Clear

Developers aren't leaving Unity, Godot, or Unreal because those engines are bad, they're leaving because Cave respects their time, simplifies their workflow, and lets them keep their money.

Stop fighting your tools. Start creating games.

Meet Cave Engine

Intuitive interface, powerful Tools: see the Engine in Action

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View Full Size

Watch Cave 1.4 in Action

See the latest Cave Engine release in this 20-minute deep dive into what makes Cave different

Why Developers Choose Cave Engine

Built by indie developers, for indie developers. Every feature designed to get you from concept to playable game faster.

⚡ Get 10+ Hours Back Every Week

While Unity devs wait for shaders to compile, you're already testing your game. Instant iteration = instant feedback = better games.

Real developers report: "I shipped 2 months faster with Cave."

🐍 Code Games Faster Than Ever

Python's simplicity + C++ performance. Prototype in minutes, not hours. Access Python's massive ecosystem while keeping performance high.

Easy to learn. Powerful to master.

💰 Keep 100% of Your Revenue, Forever

No royalties. No subscription fees. No runtime fees. Pay once, own forever. Every dollar your game earns stays in your pocket.

Unreal takes 5% after $1M. Cave takes $0.

🛠 Everything You Need. Nothing You Don't.

PBR rendering, physics, terrains, particles, animation, UI tools: all built-in. No bloat, no 2D features you'll never use. Just 3D game creation.

50MB engine vs Unity's 5GB+ download.

Cross-Platform

Windows & Linux

Game Templates

FPS, TPS, Racing & More

Modern Architecture

System based on Entity Component

Team Ready

Perfect for Small Teams

Battle-Tested by Real Developers

You're not a test subject. Every Cave Engine feature is actively used by our studio to create commercial games. We develop, test, and polish each release in real production before it reaches you. Everything just works because we use it ourselves every day.

Ready to Create Amazing Games?

See Plans

No royalties • Lifetime access • Direct developer support

GAME CHANGER

Ship Your Game in 10 Seconds

Not minutes. Not hours. 10 seconds from project creation to shippable build.

Timed & Verified

Watch the timer: open engine → create project → export for Windows → done in 10 seconds. Then see the exported game running.

Just 20MB

The exported game? Only 20 megabytes zipped. No bloat, no unnecessary files. Just your game, ready to ship.

< 1s

Cave Export Time

5-30min

Unity Export Time

20MB

Cave Build Size

200MB+

Unity Build Size

Stop waiting hours for builds. Ship faster, iterate faster, succeed faster.

Built for Performance

C++17 + OpenGL 4.3

Lightweight and optimized for max performance. No bloat, just speed. More rendering backends coming in the future.

Universal Asset Import

Drop in FBX, OBJ, DAE and more. No friction, no conversion hassles.

Bullet Physics Built-In

Realistic, robust physics simulation with zero setup required.

Start Building Today

No royalties • Lifetime access

WORLD BUILDING

Sculpt Worlds in Real-Time

Watch this 11-second time-lapse showing real-time world editing: adjust lighting, sculpt terrain, and see instant results.

Dynamic lighting system

Adjust sun position and watch shadows update in real-time

Intuitive terrain sculpting

Paint mountains, valleys, and landscapes with simple brush tools

Instant Preview

Hit Play immediately to test your World: NO waiting!

PYTHON POWERED

Code Logic Your Way

This 9 second clip shows the complete workflow: select an Entity, edit its Template, create State Machines, and write Python scripts, all in one Editor.