Donation Machine

A working Donation Machine.

A jammed Donation Machine.

The Donation Machine appears in almost every Shop (and rarely in Black Markets as well as in Arcades or Vaults). Upon touching the Donation Machine, Isaac will donate a coin, causing the displayed coin total to increment. This mechanic is unique in that the amount of coins donated will persist between runs. Donating money will both upgrade the shop and unlock new items; see below for more information. It will take the player many runs of continuous donations to unlock everything.

Notes

• A Donation Machine has a 5% chance to jam after every coin donated. When the Donation Machine is jammed, no more coins can be donated for the remainder of the run. Donation Machines are automatically unjammed at the beginning of every new run.

• Donation Machines have a very small chance of giving Isaac a luck up when donating.

• The Donation Machine can be bombed, causing it to randomly drop 2 to 5 coins each time. Coins will be deducted from the machine's total every time this occurs. However, coins are not deducted at a 1 to 1 ratio; one more coin is deducted than are actually dropped on the ground. This can be repeated for as long as Isaac has bombs.
  • Bombing machines does NOT have a chance to randomly set the donation counter to 0.

• When the amount of coins donated increases past 999, the machine will explode, dropping roughly 12 dimes and resetting the total to 0.

• Nothing unlocked through donations will be lost if the amount of coins in the donation machine is reduced in any way. Thus once something is unlocked it can never be locked again.

• Donation Machines will not appear during seeded or challenge runs.

Donation Rewards

Coins Donated	Chance
10 Coins	Blue Map is unlocked
20 Coins	Upgrades the Shop to Level 1
50 Coins	There's Options is unlocked
100 Coins	Upgrades the Shop to Level 2
150 Coins	Black Candle is unlocked
200 Coins	Upgrades the Shop to Level 3
400 Coins	Red Candle is unlocked
600 Coins	Upgrades the Shop to Level 4
900 Coins	The Candle is unlocked
999 Coins	Stop Watch is unlocked

Strategy

• Causing the Donation Machine to explode at 1000 cents is not recommended, as it does not unlock anything and removes the ability to trade bombs for coins in future runs (without first rebuilding back up the coin total).
• With the Humbling Bundle every cent received from bombing the donation machine is doubled, however the amount deducted from the donation machine is mostly less than what is dropped from it. The profit can be used to buy shop items or donate back to the machine until it jams.
• With the Placenta, a Blood Bank or IV Bag, and a lot of patience, enough money can be generated to jam the machine.
• The Donation Machine can be quickly filled using Azazel and farming coins on the first few floors. When the machine jams, simply reset and farm some more.
• As each coin gives a 5% chance to jam the machine, it will take on average, 20 coins to jam the machine. Therefore, it will take an average of 50 (49.95) runs to fill the machine, assuming the machine is jammed on each run.

Bugs

Bug!	Vita You can donate to the machine if you then leave the room, restart the game and go back to the machine and the amount you donated will still be there and so will the amount of coins you had when entering the level. (This only works if you restart the game by pressing the PS button and then pulling down the paper like icon and not if you press START and exit game.)