Unity
Strong documentation, examples, and a long history of mobile deployment.
Best engines for mobile games
A quick view of which engines make sense when phone deployment matters.
Recommendation: Unity is the most common starting point for general mobile learning. Roblox fits if your target is the Roblox app. Unreal is possible but heavier.
Roblox
Useful when your game belongs inside the Roblox platform rather than as a standalone app.
Godot and Unreal
Godot fits lighter mobile ideas; Unreal fits ambitious visuals but raises technical overhead.
What beginners often miss
Mobile choice is not only about export support. Interface readability, touch-friendly interaction, build iteration time, and access to practical examples all matter, which is why Unity stays such a common recommendation.
When not to choose it
Do not force Unreal into a tiny first mobile project if what you really need is a lighter testing loop. Do not choose Roblox if you actually need a standalone app-store style product rather than a Roblox-platform experience.