You play as Henri the Hermit crab (a Rust-acean), and must defend your shell from unfriendly sea creatures. While a Hermit Crab's shell is a house, it does not offer sufficient storage for all of your crustacean needs.
Click on the arrow-shaped gizmos to move and rotate your collected items to help you fit them in your shell. This can also be controlled with the following keys: W/A/S/D (move item), Q/E/R/F (rotate item), Arrow Keys (rotate grid).
Henri lives alone and fights alone, you will meet ill-natured sea creatures that desire nothing more than break your shell.
You can cycle to the next weapon by clicking on it on the top left corner, or by pressing Tab. Make sure to hold down the left mouse button for weapons that can auto-attack.
Shell Smash! is written in Rust using Bevy