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General Information - Schedule of Consolidated Subsidiaries (Details) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Gravity Interactive, Inc. |  |
Disclosure Of Significant Investments In Subsidiaries [Line Items] |  |
Subsidiary | Gravity Interactive, Inc. |
Location | U.S.A. |
Ownership interest held by the Gravity (%) | 100.00% | 100.00%
Fiscal Year End | December |
Main business | Online and mobile game services |
Gravity NeoCyon, Inc. (Formerly, NeoCyon, Inc.) |  |
Disclosure Of Significant Investments In Subsidiaries [Line Items] |  |
Subsidiary | Gravity NeoCyon, Inc. (Formerly, NeoCyon, Inc.) |
Location | Korea |
Ownership interest held by the Gravity (%) | 99.53% | 99.24%
Fiscal Year End | December |
Main business | Mobile game development and service |
Gravity Communications Co.,Ltd. |  |
Disclosure Of Significant Investments In Subsidiaries [Line Items] |  |
Subsidiary | Gravity Communications Co.,Ltd. |
Location | Taiwan |
Ownership interest held by the Gravity (%) | 100.00% | 100.00%
Fiscal Year End | December |
Main business | Online and mobile game services |
Gravity Entertainment Corporation |  |
Disclosure Of Significant Investments In Subsidiaries [Line Items] |  |
Subsidiary | Gravity Entertainment Corporation |
Location | Japan |
Ownership interest held by the Gravity (%) |  | 100.00%
Fiscal Year End | December |
Main business | Animation production, distribution, and game services |
PT. Gravity Game Link |  |
Disclosure Of Significant Investments In Subsidiaries [Line Items] |  |
Subsidiary | PT. Gravity Game Link |
Location | Indonesia |
Ownership interest held by the Gravity (%) | 70.00% | 70.00%
Fiscal Year End | December |
Main business | Online and mobile game services |
Gravity Game Tech Co.,Ltd. |  |
Disclosure Of Significant Investments In Subsidiaries [Line Items] |  |
Subsidiary | Gravity Game Tech Co.,Ltd. |
Location | Thailand |
Ownership interest held by the Gravity (%) | 100.00% | 100.00%
Fiscal Year End | December |
Main business | Online and mobile game services |
Gravity Game Arise Co., Ltd. |  |
Disclosure Of Significant Investments In Subsidiaries [Line Items] |  |
Subsidiary | Gravity Game Arise Co., Ltd. |
Location | Japan |
Ownership interest held by the Gravity (%) | 100.00% | 100.00%
Fiscal Year End | December |
Main business | Online and mobile game services |

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