All multipliers have an invisible x1 Premium Bonus that increments if you buy the corresponding promotion. If a promotion is active, the premium multiplier is shown as Event Bonus.
The Income Multiplier grows when the player reaches a new level. Keep in mind that the level achievement multiplier does not exactly double when you reach a new level. See the table in the achievements page.
A x5.6E9 Income Multiplier (on level 20) is possible as follows:
Level achievement: 1.0E6
Wood Set: x3.8
Leather Set: x3.2
Copper Set: x3.2
Bronze Set: x3.4
Iron Set: x3.4
Precious Set: x3
Renaissance Set: x2
Industrial Set: x1
Vehicles Set: x1
Event Achievement: x2
A 540% Click Output Multiplier is possible as follows:
Crafting Idle Clicker is the only game that rewards the humans for not playing it. If your offline bonus percentage is greater than 100% then by having the game closed, you will gain a net benefit over having it open.
For example, if a player has an offline production of 750% this means that, when the game is closed, they get seven and a half times as much items (and money) than usual. All they have to do is just close the browser tab so that the game is not running. They don't need to close the whole browser.
A 914% Offline Production Multiplier is possible as follows:
Ore Output Edit
A 300% Ore Output Multiplier is possible as follows:
Base value: 100%
Mining Tools Set: x3
A 35,750% Research Production Multiplier is possible as follows:
A 11,250% Merchant Revenue Multiplier is possible as follows:
A Merchant Capacity of 16 is possible as follows:
Base value: 4
Merchant achievement: +12
A 200% Speed Multiplier is possible as follows:
Base Value: 100%
Speed booster: x2