The Linux builds for all four chapters of Snail Trek have been patched to address the " SHIFT to move fast" bug (the bug was: pressing shift, or alt, or a few other special keys would instead result in the parser box opening up with a number in it).
Patch for Linux
Build and release context
Steam update times within 24 hours of this post. Matching dates do not confirm which build it describes.
Build 2843773 · public branch
Steam updated · First observed
Build 2843654 · beta branch
Steam updated · First observed