[Home](./index.md) > [bitburner](./bitburner.md) > [Singularity](./bitburner.singularity.md) > [purchaseProgram](./bitburner.singularity.purchaseprogram.md) ## Singularity.purchaseProgram() method Purchase a program from the dark web. Signature: ```typescript purchaseProgram(programName: string): boolean; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | programName | string | Name of program to purchase. | Returns: boolean True if the specified program is purchased, and false otherwise. ## Remarks RAM cost: 2 GB \* 16/4/1 This function allows you to automatically purchase programs. You MUST have a TOR router in order to use this function. The cost of purchasing programs using this function is the same as if you were purchasing them through the Dark Web using the Terminal buy command. ## Example 1 ```ts // NS1 purchaseProgram("brutessh.exe"); ``` ## Example 2 ```ts // NS2 ns.purchaseProgram("brutessh.exe"); ```