Gold

Gold (displayed as $ in the interface) is the main resource in game, automatically given at the end of each round along with experience. Your courier's Mana is always equal to your Gold amount.

= Spending = There are 3 ways to spend gold:
 * Buy Chess Pieces (Cost 1-5) from the menu after each round. The menu can be opened/closed at any time with Spacebar, or by clicking the "chess pieces" icon in the top-left . The menu will automatically re-roll after every round, unless you press the Lock icon in the bottom-left corner of the Buy Chess Pieces menu.


 * Manually Re-roll (Cost 2) the Buy Chess Pieces menu with your courier's 4th ability, or by clicking the re-roll icon in the Buy Chess Pieces menu.
 * Gain Experience (Cost 5) with your courier's 5th ability. Your courier's Level (shown in bottom left of the unit portrait) is always equal to the max # of pieces you can have on the field. Additionally, your level affects your odds of getting higher-cost Chess Pieces every time it re-rolls.

= Earning =
 * at the end of each round you get some base gold 1-4 for the first 4 round and 5 gold for every round after that.
 * winning a fight with a player gives you 1 extra gold
 * win/loss streaks can give you extra 1-3 gold
 * for every 10 gold at the end of the turn you get 1 extra gold, capped to 5 at 50 gold.
 * selling chess pieces refunds their current level as gold.

Winstreaks and Losestreaks
After winning 3 non-creep rounds in a row, your start earns +1 additional gold at the end of the turn. Keeping the win streak can get you up to +3 gold. Creep rounds do not affect your win/loss streaks.

Same applies for loss streaks.

Refunds
Every unit can be sold for X gold where X is the Unit Level.

Interest

 * Interest accumulates at a 10% rate every round. If you have 50 gold banked, you will receive 5 gold per turn, which can build up to a tremendous economy in mid-game (early game you need to invest to field chess pieces).

= Cap = Gold is capped to 100.

= Strategies =