Valkyrien Skies [UNOFFICIAL] Port
ModBuild airships and boats that move with realistic physics.
- Security
- Passed
- Privacy
- None found
- Runs on
- Varies by version
- Loaders
- Fabric, NeoForge
- Minecraft versions
- Up to 26.2
Why gradeB
How grades workStrengths
Points lost
- First release only 5 months ago−5 points
- No public issue tracker−3 points
- Under 5 million downloads−1 point
All 11 criteria
Maintenance
Full points21 / 21Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.2 months ago (24 Aug 2026) 12 / 12Supports popular versionsWhether the project has a file for a Minecraft version that 15% or more of the popular mods updated in the last 6 months also support. A version many modpacks use, like 1.20.1 or 1.21.1, also counts after a release in the last 12 months.26.2 on NeoForge, 1.21.11 on Fabric. 55% of the 995 popular NeoForge mods updated in the last 6 months also have files for 26.2. Latest Minecraft: 26.3. 9 / 9Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Does not apply. The project is under 6 months old.Stability
Full points5 / 5Removed from modpacksHow many modpacks removed it in a later version of the pack. We can only see this in modpacks with two or more versions. A pack that swaps it for another edition of the same project, or that is rebuilt from scratch, does not count.Not measured yet.Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.Not measured yet.Known conflictsHow many projects say they do not work with it, compared with how widely it is used. Packs, small projects, forks, ports, add-ons, alternatives and old versions do not count.1 known conflict, but it does not count in the grade See the known conflict5 / 5Transparency
3 points lost7 / 10Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · ValkyrienSkies/Valkyrien-Skies-2 7 / 7Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.No link to report problems 0 / 3Popularity
1 point lost3 / 4DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.36,089 3 / 4Track record
5 points lost3 / 8AgeHow long the project has existed. It counts less when no new file came out recently.5 months, 3 releases 3 / 8Security
PassedFile checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 3 latest files for recent Minecraft versions. See Security
39 of the 48 points that apply = 81 out of 100.
Images
About
Valkyrien Skies [UNOFFICIAL] Port brings the Valkyrien Skies 2 physics engine to newer Minecraft versions, letting players build airships, boats, and other moving structures. Its ships are made from moving Minecraft blocks that remain usable while in motion, with rigid-body physics governing collisions and interactions with the world and other ships, including effects from mass, friction, and elasticity. The port is available for Fabric and NeoForge, with compatibility varying by game version and loader; its Fabric build for Minecraft 1.21.11 is listed as compatible with Iris Shaders.
Written from Modrinth . How we write it
In-game changes
Changes the game's code in 14 areas, as a library other mods build on: Mobs and their behaviorChanges 38 game code files in this area: mobs, animals, villagers, projectiles and how they move and act., Rendering and graphicsChanges 16 game code files in this area: drawing mobs, items, particles and textures on screen., Server and world logicChanges 11 game code files in this area: the world, commands, scoreboards, saved data and game rules., Chunk loading and storageChanges 9 game code files in this area: how the game loads, tracks, saves and unloads chunks., Blocks and fluidsChanges 9 game code files in this area: how blocks, fluids and redstone work., World renderingChanges 5 game code files in this area: drawing the terrain, sky, clouds and weather., SoundChanges 5 game code files in this area: playing sounds, music and the sound engine., Inventory and itemsChanges 5 game code files in this area: items, chests and other containers, crafting and enchanting., PlayerChanges 4 game code files in this area: your character: movement, abilities, hunger and controls., World generationChanges 3 game code files in this area: terrain, biomes and structures made when new land is created., User interfaceChanges 3 game code files in this area: menus, screens, tooltips, the chat window and the in-game overlay., Networking and multiplayerChanges 3 game code files in this area: connections, the server list and what is sent between your game and a server., Game coreChanges 2 game code files in this area: the main loop, lighting and other code the whole game uses. and Game optionsChanges 1 game code file in this area: settings, key bindings and the option screens..
Adds 7 blocks, 7 items, 1 entity and 2 key bindings.
Counted from the names and data files in the mod, so the list may not be complete.
Keeps all of vanilla Minecraft's textures, models and sounds.
Details
- Creator
- LumixTeam
- License
- GNU Lesser General Public License v3.0 only
- Downloads
- 36K
- Created
- 27 May 2026
- Official pages
- Modrinth , CurseForge
- Links
- Source code , Wiki , Discord
Security
No harmful code found
We checked its files and read their code, without running it.
What it can do on your computer
- Uses folders outside the game
- It can read or write files outside your Minecraft folder, on the rest of your computer. Only in its files for NeoForge 1.21.1 to 26.2.
- Creates settings files
- The mod keeps its settings in the config folder of your game, where you can change or delete them. 4 files in your config folder.
- Connects to the internet
- It has code that can go online, for example to check for updates, load skins or send crash reports. Found in code libraries built into it and in 5 libraries it includes. See Privacy
Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.
How we checked
- FilesWe download the files from Modrinth or CurseForge and look at what is inside them and what their code can do, without running them. Fixed rules tell what is harmful.3 latest files: the newest file for each Minecraft version and loader. All 3 are for recent versions. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks. See each file in Releases
- Their codeWe turn the code of the files back into readable code and follow what it does, without running it. This shows what it downloads, what it sends and where your login goes.Read without running it
- Author on ModrinthThe disclosure form on Modrinth, where the author declares that the project reads or edits things on your system outside the game. Since 13 Aug 2026, Modrinth's rules require it when this applies.Nothing declared about your system outside the game.
- Uses folders outside the gameUses the temporary files folder.
- Looked for, not foundWe looked for these in the file and did not find them.Other programs, updating itself, the webcam or microphone, an AI service.
Privacy
We found nothing it sends
We read its code without running it: it contacts no web address while you play.
Why we show this: a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.
How we checked
- Files readWe read the code without running it. We list each web address the code contacts while you play, and what it sends. Code that is never used is left out.The code of all 3 files, for recent Minecraft versions. See each file in Releases
- Author on ModrinthThe disclosure form on Modrinth, where the author declares crash reports, usage data and advertisements. Since 13 Aug 2026, Modrinth's rules require it when a project collects data on its users or shows advertisements.Nothing declared about crash reports, usage data or advertisements.
AI
An AI tool may have been used
Claude Code is named in the ignore list of its repository.
This does not show that it was used to make the files you download.
No sign of AI in the game
We found no AI service, AI library or AI model file in its code.
Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.
How we checked
- Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.No AI content or AI features declared.
- Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.Possible signThe tool was seen around the project. This does not show that it was used to make the files you download.: Claude Code files listed in its ignore list
/.claude/settings.local.jsonWeak signA branch name only. It does not show that the tool was used.: A branch named like those Claude Code createsclaude/forge-gametest-setup-KY6t0 - Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.Nothing found in the descriptionChangelogs not read yet
- Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.Nothing found
- Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.Nothing found13 images read
- Code of the modThe code and files of the mod, read without running it: addresses of AI services, AI libraries, AI model files and a place for your own AI key.No AI service, AI library or AI model file3,848 code files read
Compatibility
See all 3 filesPoint at or tap a version to see its loaders.
Known conflicts
These projects do not work together with Valkyrien Skies [UNOFFICIAL] Port: their authors or Valkyrien Skies [UNOFFICIAL] Port's author say so. If you install both, the game can crash or some features can stop working. Some of them do the same job as Valkyrien Skies [UNOFFICIAL] Port, so you only need one.
Related projects
Projects that need Valkyrien Skies [UNOFFICIAL] Port to work.
Modpacks using this project
Find modpacks with itModpacks that include Valkyrien Skies [UNOFFICIAL] Port in at least one of their versions, most downloaded first.
Latest files
The newest file for each Minecraft version and loader. The files for recent versions come first. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.