Searching for an Alex Caves mod download often produces several file types and project pages. The most important step is to identify whether a file is source code, a compiled mod release, or a community-maintained port before putting anything into a Minecraft instance.
The supplied download is a source archive
The primary download link on this website points to the original project’s GitHub main-branch ZIP. A branch archive is useful for reviewing source files or building the project, but it is not automatically the same as a compiled JAR that a normal Forge or NeoForge player places into a mods folder.
Source ZIP and mod JAR are different
A source ZIP contains project code, resources and build files. A compiled mod JAR is the package loaded by Minecraft through a compatible mod loader. If your goal is ordinary gameplay, verify that you have a compiled build for your exact Minecraft version and loader rather than renaming or dropping a source archive into the mods folder.
Match Minecraft, loader and dependency
For the original project, use Minecraft 1.20.1 as the baseline and verify Forge or NeoForge compatibility for the selected build. Original public documentation also lists Citadel as a required dependency. A file may be genuine and still fail if any one of those three pieces is mismatched.
What about Modrinth results?
Alex Caves Modrinth searches can be useful for checking original project metadata and version labels. Treat the listing as a reference point for the original 1.20.1 Java Edition project, then compare the loader and dependency requirements against the file you plan to use.
A safer download checklist
Before opening or moving a file, check the project name, file extension, Minecraft version, mod loader and dependency list. Be cautious if a supposed Minecraft mod asks you to run an unrelated installer or executable. Back up important worlds before changing a modded instance.
Next step
Return to the main compatibility section before downloading so you can compare edition, Minecraft version, loader and file type in one place.