How to earn Coins.

You get coins by killing lawyer cats and doing the tutorial zombie quests.
How to get platinum? You either have to pay for it with real money, or suggest updates in the suggestion box, if they are good, and make it into the game, you might get platinum.

Item Prices

Construction blocks:

glass block - 10 coins
half-sized glass block - 7 coins
cement block - 1 coin
half-sized cement block - 1 coin
road block - 5 coins
grass block - 1 coin
checker block - 10 coins
black block - 20 coins
sand block - 2 coins
brick block - 20 coins
half-sized brick block - 20 coins
dirt block - 1 coin
wood block - 5 coins
half-sized wood block - 5 coins
telepad - 3 platinum
roof - 1 coin
carpet: teal - 1 coin, purple - 10 coins, red - 20 coins
doors: ordinary door - 10 coins, owner door - 2 platinum, town door - 2 platinum
townstone - 10 platinum


Weapons:

sword - 5 coins
gun - 100 coins
Household goods:
table - 20 coins
bed - 20 coins
stool - 5 coins
gold safe - 5 platinum
Traps:
fake floor - 1 platinum
spikes - 1 platinum
sign - 10 coins


Races:

zombie - 1 platinum
Clothing:
Hats - viking helm - 1000 coins, pirate hat - 500 coins, roof hat - 100 coins, grey hat - 25 coins, wizard hat - 8 platinum, top hat - 172 platinum.
Shirts - red shirt - 100 coins, green shirt - 100 coins, blue shirt - 100 coins
Accessories - glasses - 100 coins, clown nose - 100 coins, ninja mask - 16 platinum, eye patch - 1 platinum