Welcome to the OpenSFX Base Sound Set download repository. Here you can find various prebuilt versions of the OpenSFX Base Sound Set for OpenTTD. These builds are available in two flavours: nightlies and stable releases. The nightlies are a snapshot of the latest developments and thus contain the latetst new features but possibly also the latest bugs. Stable releases are tested more thoroughly before they are made available to the public.
If you think you've found a bug, you should first see if it's reported previously. If the bug you've found is not listed there, you should report it directly or alternatively discuss it in the release topic first.
If you have problems installing OpenSFX, consult the OpenSFX ReadMe before asking a question.