Pixelpart

Pixelpart is a particle-based editor for building 2D and 3D visual effects for games. It is best suited to developers and effects artists working with Unity, Godot or GameMaker who want effects that can respond to game state. Its free Demo is a useful starting point, but the Professional license is needed for unrestricted exports and advanced authoring.

Overview

Pixelpart combines particle authoring with keyframe animation and motion paths. Emitters, force fields, colliders, light sources and group nodes give effects several ways to shape movement and interaction, making the tool more suited to layered, changing effects than to frame-by-frame sprite animation. Hybrid animation and runtime export support both authored motion and effects used inside a game.

Effect inputs and triggers let the Unity, Godot and GameMaker plugins react to game state. That makes Pixelpart a stronger fit for interactive effects than a workflow limited to exporting a finished clip. The trade-off is engine dependence: its runtime advantages matter most when a project uses one of those three integrations.

For work outside an engine, effects can be exported as videos, sprite sheets, image sequences and animated images. The maker, Sören Möllers, publishes the plugins as free and open-source software. They are compatible with effect files generated in Pixelpart 1.9.x, so compatibility should be checked before building a pipeline around existing files.

Key features

• Particle controls: Emitters, force fields, colliders, light sources and group nodes provide the core pieces for assembling effects.
• Animation tools: Keyframes and motion paths complement the particle workflow, allowing both directed movement and particle-based behavior.
• Interactive inputs: Inputs and triggers allow compatible engine plugins to respond dynamically to game state.
• Multiple outputs: Video, sprite sheet, image sequence and animated image exports suit projects that need rendered assets rather than runtime effects.
• Engine plugins: Free, open-source integrations cover Unity, Godot and GameMaker, with documented targets including Windows, Linux, macOS, iOS, Android and Web/HTML5.

Pricing

The free Demo costs free and includes simple effects, future updates and bug fixes, and game engine integration. It gives prospective users a no-cost way to work with the basic workflow, but simple effects are a meaningful ceiling for production needs.

Professional costs $24.99, paid once as a one-time purchase. It adds all features, unlimited nodes and particle types, unlimited effect inputs and triggers, and unrestricted video and sprite export. This is the relevant plan for users who need complex authoring or broad export capacity; the Demo is the better fit for simpler experiments. The plans do not state a seat allowance.

Platforms

The editor is listed for Linux and Windows. Steam gives minimum requirements of Windows 10 x64 or Ubuntu 20.04 x64; Linux requires X11. Plugin targets extend to macOS, iOS, Android and Web/HTML5, but those targets do not change the editor's stated desktop operating systems.

Engine requirements are Unity 2021.3 or later, Godot 4.3 or later, and GameMaker 2024 or later. Projects on older engine versions should not assume the plugins will fit their setup.

Who it's for

Pixelpart is a practical match for game developers and effects artists who need reusable particle effects, runtime controls and a path to rendered exports. It is less compelling for someone seeking a general-purpose 2D animation editor or an integration for an engine outside Unity, Godot and GameMaker.

Pros and cons

• Pro: Runtime inputs and triggers connect effects to game state, which supports interactive rather than fixed effects.
• Pro: The free, open-source engine plugins and multiple export formats support both in-game use and rendered assets.
• Pro: Professional is a one-time purchase and removes node, particle-type, input, trigger and video/sprite export limits.
• Con: The Demo is restricted to simple effects, so it is not a substitute for the full authoring feature set.
• Con: Plugin compatibility is tied to Pixelpart 1.9.x effect files and specified minimum engine versions, which can constrain existing projects.
• Con: The editor's listed operating systems are Linux and Windows, despite plugins documenting additional runtime targets.

Alternatives

For a broader set of options, browse 2D Game Animation Software.

• Effekseer is the stronger fit for users prioritizing a free, open-source effects program across its listed desktop, mobile and web platforms.
• Rive suits collaborative editor work: its free plan includes three collaborative files and one project, with apps listed across desktop, mobile and web.
• LibreSprite is a free, open-source alternative for users who want a sprite-oriented tool across its listed platforms.
• SkelForm is a free and open-source 2D skeletal animator for users whose priority is skeletal animation rather than particle effects.
• SpineBones fits users looking for a free animation workflow with a 300-frame timeline, playback up to 120 FPS, and WebM, PNG sequence and sprite sheet exports.
• Spriter offers a free version with basic PNG and spritesheet animation; its Pro plan is listed at $59.99 a month for one user license.
• Keyframe.it is a free browser-based choice with four tools, no account and no ads.
• Phluxel is a Windows option with a forever-free, no-account tier limited to watermarked 128×128 output, 1024px / 300 frames and personal, non-commercial use.

Verdict

Choose Pixelpart if you need particle-based game effects that can respond to runtime state in Unity, Godot or GameMaker, with a one-time Professional purchase for unrestricted authoring and exports. Look elsewhere if your priority is a broad animation editor, a different engine integration, or an editor platform beyond Linux and Windows.