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Smile Game Builder

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What Smile Game Builder is

SMILE GAME BUILDER is Windows software for creating 2D and 3D RPGs without programming. It includes more than 1,000 materials, such as characters, graphics, music, sound effects, buildings, and animals, and users can import their own characters and objects. Games made with the software may be distributed or sold without royalties or an individual license, according to the maker.

The software itself creates games for Windows. Output for iOS, Android, WebGL, and Nintendo Switch requires the optional Exporter for Unity DLC; Switch has additional requirements. The game engine does not support scripting or programming languages for customization. A demo is available, but games made with the trial cannot be distributed, although the production version can open trial data. Included assets generally cannot be used in other companies' game-development tools, with an exception for users of the Unity exporter within Unity-generated games. Purchase is through Steam, and minimum requirements include Windows 7/8/10, 2 GB RAM, OpenGL 3.0 or higher, and 800 MB of available storage.

Who it suits

It suits creators who want to make 2D or 3D RPGs without programming and can work in Windows. The optional Unity exporter is relevant to those targeting platforms beyond Windows.

What it does well

Supports both 2D and 3D RPG projects
Includes more than 1,000 materials
Users can import their own characters and objects
Games may be distributed or sold without royalties
Demo data can be opened in the production version

What to know first

No free plan
Trial-made games cannot be distributed
Engine customization through scripting is unsupported
Non-Windows output requires optional Unity exporter

Limits

There is no free plan. Games created with the demo cannot be distributed, and the engine does not support scripting or programming languages. Included assets generally cannot be used in other companies’ development tools.

Plans

Plan	Billed and limits	Price
SMILE GAME BUILDER	80% off; offer ends as shown on Steam · Windows game-making software · Steam purchase · separate DLC available	On request

As smilegamebuilder.com lists them, read 8 Oct 2026. The maker's own page has the final word.

Getting started

Visit the Smile Game Builder website
Use a Windows computer meeting the listed Steam requirements
Purchase the production version through Steam
Use the available demo to create trial data
Open trial-version data in the production version
Add the optional Exporter for Unity DLC for Unity-based target exports

Verdict

SMILE GAME BUILDER offers RPG creation without programming, a large included asset set, and Windows output. Check the trial distribution restriction and the extra Unity exporter requirement for other listed platforms.

Questions

Is Smile Game Builder paid?

Yes. Smile Game Builder uses a paid pricing model and offers a separate free trial.

Which platforms does the software run on?

The software runs on Windows. Steam lists Windows 7, 8, and 10 among its minimum requirements.

Which platforms can finished games target?

The software itself creates Windows games. The optional Exporter for Unity DLC enables Unity projects for iOS, Android, WebGL, and Nintendo Switch, with additional Switch requirements.

Can games be sold without royalties?

The maker says games created with the software may be distributed or sold without royalties or an individual license.

Does it support programming or scripting?

No. The maker says the software does not support scripting or programming languages for customizing its game engine.

Can I use the included assets in other game tools?

Generally no. The maker describes an exception for users of the Exporter for Unity DLC within Unity-generated games.

Facts from Smile Game Builder's own pages

Asset restrictions: Included assets generally cannot be used in other companies’ game-development tools; the maker describes an exception for users of its Exporter for Unity DLC within Unity-generated games. · smilegamebuilder.com, 8 Oct 2026
Company: SmileBoom describes itself as a software development company in Japan. · smileboom.com, 8 Oct 2026
Custom assets: Users can import their own characters and objects into the engine. · store.steampowered.com, 8 Oct 2026
Free plan: No · smilegamebuilder.com, 22 Sept 2026
Game distribution: The maker says games made with the software may be distributed or sold without royalties or an individual license. · smilegamebuilder.com, 8 Oct 2026
Headquarters and establishment: SmileBoom lists its headquarters in Sapporo, Hokkaido, Japan, and says it was established January 15, 2008. · smileboom.com, 8 Oct 2026
Included assets: The software includes more than 1,000 materials, including 3D characters, graphics, music, sound effects, buildings, and animals. · store.steampowered.com, 8 Oct 2026
Programming limit: The maker says the software does not support scripting or programming languages for customizing its game engine. · smilegamebuilder.com, 8 Oct 2026
Purpose: SMILE GAME BUILDER is game-making software for creating 3D RPGs without programming. · store.steampowered.com, 8 Oct 2026
Support and purchase: The maker’s FAQ says the product is purchased through Steam and directs users to its support information for system and troubleshooting help. · smilegamebuilder.com, 8 Oct 2026
System requirements: Steam lists Windows 7/8/10, a 2 GB RAM minimum, OpenGL 3.0 or higher, and 800 MB of available storage as minimum requirements. · store.steampowered.com, 8 Oct 2026
Trial: A demo is available, but games made with the trial version cannot be distributed; the production version can open trial-version data. · smilegamebuilder.com, 8 Oct 2026
Unity integration: The optional Exporter for Unity DLC converts project game files into Unity projects, enabling output for platforms including iOS, Android, WebGL, and Nintendo Switch, subject to additional requirements for Switch. · smilegamebuilder.com, 8 Oct 2026
Windows output: The maker says the software itself creates games for Windows and cannot produce Android or iOS apps. · smilegamebuilder.com, 8 Oct 2026