Defold

Defold is a game engine for making 2D and 3D games, bringing creation and release tools into one workflow. It is a strong fit for developers willing to write game logic in Lua; teams seeking visual scripting should look elsewhere.

Its clearest advantage is the combination of source availability, a zero-cost plan and exports spanning desktop, mobile, web and selected consoles.

Overview

The editor, runtime, scripting workflow, build pipeline and deployment flow sit within one toolchain. That integrated approach can simplify the path from building a game to shipping it, while visual editors, animation, particle effects, a debugger and profiler cover common creation and diagnostic needs. Built-in 2D and 3D physics make it relevant to projects in either dimension, though the listed capabilities alone do not make it a visual-first engine.

Game logic is written in Lua. Native extensions can use C, C++, Objective-C, Java or JavaScript, giving teams a way to add code in other languages while keeping Lua as the main gameplay language. There is no visual scripting, which is a meaningful drawback for learners or designers who prefer node-based logic.

Key features

Multiplayer tools and mobile export are included. Console export covers PlayStation 4, PlayStation 5 and Nintendo Switch, expanding the potential reach beyond desktop and mobile. Live Update can deliver additional content after the initial download and supports customizable content verification, a useful option for games that need to separate some content from the first install.

Official integrations include Firebase Analytics, AdMob, in-app purchases, push notifications, Google Play services, Nakama and PlayFab. The Asset Portal also provides reusable components and extensions, including third-party SDK and service integrations. These options can reduce the need to build common service connections from scratch, while teams should expect to work within Defold's extension and scripting workflow.

The engine, editor and build tools have source code available on GitHub under a developer-friendly license derived from Apache 2.0. Community help is available through the forum, and technical support contracts are offered for teams that need another support route.

Pricing

Defold costs free, billed Free forever. The plan carries no licensing fees, royalties or runtime fees, making it suitable for hobbyists and commercial teams alike. There is no free trial because the engine is free to use; there are no paid tiers or stated usage caps to weigh against the plan.

Platforms

The editor runs on macOS 11 Big Sur or newer, Windows Vista or newer, and Ubuntu 18.04 64-bit or newer. Target exports include Windows, macOS, Linux, iOS, Android, HTML5, PlayStation 4, PlayStation 5 and Nintendo Switch. That range suits teams planning releases across several device types, but specific console targets are limited to the listed systems.

Who it's for

Defold suits indie creators, students and studios shipping commercial games, particularly those comfortable with Lua and seeking a free toolchain with broad export options. Native extension languages offer flexibility for additional code, while the integrated editor and build pipeline keep core development and deployment together. It is less suitable for creators who want to build gameplay visually without scripting.

Pros and cons

• Pros: Free forever with no licensing, royalty or runtime fees, removing recurring engine charges from project planning.
• Pros: Desktop, mobile, web and selected console targets support a broad release strategy from one engine.
• Pros: Source availability, native extension options and integrations give technical teams room to inspect and extend the toolchain.
• Cons: Lua is required for game logic, so the core workflow is not suited to teams avoiding code.
• Cons: No visual scripting means creators seeking node-based gameplay authoring will need another engine.

Alternatives

Godot Engine is another free game engine with a free plan and no contracts or hidden fees; consider it if you want a different free-engine option.

B4X offers free B4A for Android development and free B4R; consider it when Android or the B4X development approach is the priority.

Codename One has a free plan with 100 cloud build credits per month, with iOS cloud builds costing 8 credits each and a user JAR limit of 8.5 MB. Consider it if those cloud-build limits suit your needs.

Felgo has a Personal plan for annual turnover under €50k and a Startup plan priced at €79 a month billed annually; consider it if those plan terms better fit your project.

Monaca offers a free plan with a cloud IDE, debugging, 3 projects and 3 remote builds per 24 hours; consider it if those defined project and build limits work for you.

Qt Creator has an open-source version, with Qt framework use subject to LGPL/GPL obligations; consider it if that framework and licensing arrangement are a better fit.

C++Builder offers a Community Edition; consider it if you want to evaluate that alternative.

DroidScript is free to download, with optional paid plugins and donations; consider it for an Android-focused alternative.

For more options, browse Game Engine Software, Game Development Software or Mobile Development IDEs.

Verdict

Choose Defold if you want a free, source-available engine with an integrated workflow and exports across desktop, mobile, web and selected consoles. Its no-fee terms are compelling for both independent and commercial projects. Look elsewhere if visual scripting is central to how your team builds games.