How to Hack Exponential Idle

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Exponential Idle by Conic Games is the idle game that is mostly maths: tap the equation to step time forward, and f(t), your money, grows by a factor every step. It isn’t Unity, so there is no playerprefs file. The whole save is one JSON string called MainState with 678 fields, and every big number in it is three small ones: Sign, Exponent and Depth. f(t) is the one called FunctionValue.

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1. 1

   Start the game and tap the equation for a while. f(t) is in the top left corner; I had $1.0039.

2. 2

   Open CheatDroid, allow root and tap Exponential Idle. Of the four files under Shared preferences, open com.conicgames.exponentialidle_preferences.xml and tap Force stop.

   

3. 3

   Tap MainState and type FunctionValue into the field filter. Tap the first match, FunctionValue (JSON, 3 fields). Put 999999 into Exponent, make sure Depth is 0 and tap Save.

   

4. 4

   Start the game. f(t) shows $1.0077e6, a million with the scientific notation the game always uses.

5. 5

   Spend it. Prices here divide f(t) instead of coming off it: a level of y at $1.37 took me from $2.0e6 to about $1.5e6. The game saves and keeps growing from whatever is left, and it starts in airplane mode.

   

What else I found

• The game switches FunctionValue to Depth 1 on its own once it grows. Set Depth to 0 together with the 999999, or the Exponent means something else.
• The StatisticsPre... matches under FunctionValue are statistics. Leave them.
• It runs offline. Tested on version 1.4.46.

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Made a game that keeps its coins like this? Here’s how to sign PlayerPrefs so this edit fails.