Software · Photo & graphics

Nightmare Editor

Edit and mod KH3D's files.

Completely free
Windows and Linux
Open source

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by Flathub
License: Apache-2.0 — Open source (permissive)confirmed by Flathub
Open source: Yes
Commercial use: Yesconfirmed by Flathub
Account required: not documented
Credit card required: Noconfirmed by Flathub
Watermark: not documented
Ads: not documented
Platforms: Windows and LinuxEstablished by Linux: Flathub, Unspecified source · Windows: Unspecified source
Publisher: Solt11
Latest version: 1.0.5 (7 October 2026)
Latest activity: 7 October 2026

At a glance

Nightmare Editor is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (Apache-2.0) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

Open source code
Commercial use allowed

About

Nightmare Editor is a free, open source toolset focused on modding Kingdom Hearts 3D: Dream Drop Distance. Built in is its own mod manager, Exam Editor, focused on providing a simplified way to build multiple mods into the 3DS version of the game. This tool works with games running both on real 3DS hardware and emulators such as Azahar, with texture pack support for emulators.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Facts collected from Unspecified source (platforms) — 9 November 2026
Last technical check: 9 November 2026
Description from Flathub — AppStream (Flathub)

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