The town prototype and the shop system have been completed. The player can return to the town by climbing back up to the top level or after they reach certain level they will receive the "Recall" ability to automatically return to town.
See the below video for a demonstration of the shop system. The graphics and information layout in the shop are not yet completed, but this should give you a pretty good idea of how it will function. The filter feature was needed since I am aiming to have hundreds of items in the game. I think I am going to add a second filter for the rarity of the items so the player doesn't have to scroll through 20 "Rusty Swords" to find the "Epic Sword of Awesomeness" (that they can't afford...).