itch.io

I think a good idea would to be able to Select Different Locations. This way you can have New Scenery, Landscape and New types of Sharks. By having the players able to select the location, you can use this as a way to Change the difficulty by picking an area with either More Aggressive or Less Aggressive Sharks. To keep the game refreshing you can also add levels with multiple little sharks, an Easter-egg with a Jaws sized shark that can take out multiple foundations at once, and even a shark-less water for the guy that just wants to build.

After seeing the 1.0.5 update I get the feeling you might be going a warmth meter or something. If you are or aren't you could also make a Location in the north where it snows frequently and the player has to factor warmth more heavily. The Possibilities are endless.

To remap a key once you launch Raft you will have Raft Configuration open. Then next to the Graphic tab (Above Screen resolution) there is an Input Tab. Once selecting the Input tab double-click either the Primary or Secondary control and press your desired key to change it. You can change both if you like as well.

I believe it is 15. I say this because I have a line of 13 on my raft and have some loot go to the edges by one. DzefersonS says it's infinite so it might scale with you but either way I designed my raft to be one less because I didn't want to build many chests.

To get to the build menu you have to hold right-click while you have the hammer in equipped in your hand. Then move your towards the direction of what you want to build and stop holding right-click.