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Revenue from Contracts with Customers (Tables) | 12 Months Ended
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Dec. 31, 2021
Revenue From Contracts With Customers [Abstract] |
Details of Revenue from Contracts with Customers Based on Service Contract and Timing of Satisfaction of Performance Obligations | Details of revenue from contracts with customers based on the service contract type and the timing of satisfaction of performance obligations are as follows:
| 2021 |  | 2020 |  | 2019
| (In millions of Korean won)
Service contract |  |  |  |  |
Micro-transaction and subscription revenue |  |  |  |  |
Online game | ₩ | 64,382 |  |  | ₩ | 76,110 |  |  | ₩ | 30,751 |
Mobile game | 164,646 |  |  | 251,960 |  |  | 279,255 |
| 229,028 |  |  | 328,070 |  |  | 310,006 |
Royalties and license fees |  |  |  |  |
Online game | 10,988 |  |  | 13,435 |  |  | 11,571 |
Mobile game | 155,518 |  |  | 46,364 |  |  | 22,648 |
| 166,506 |  |  | 59,799 |  |  | 34,219 |
Others | 18,404 |  |  | 18,084 |  |  | 16,742 |
| 413,938 |  |  | 405,953 |  |  | 360,967 |
Timing of satisfaction of performance obligations |  |  |  |  |
At a point in time | 8 |  |  | — |  |  | 175 |
Over time | 413,930 |  |  | 405,953 |  |  | 360,792 |
| ₩ | 413,938 |  |  | ₩ | 405,953 |  |  | ₩ | 360,967 |
Account Receivables, Incremental Costs of Obtaining a Contract, and Contract Liabilities | Accounts receivables, incremental costs of obtaining a contract, and contract liabilities related to contracts with customers as of December 31, 2021 and 2020 are as follows:
| 2021 |  | 2020
| (In millions of Korean won)
Accounts receivables | ₩ | 52,615 |  |  | ₩ | 59,761 |
Incremental costs of obtaining a contract (Prepaid expenses) | 861 |  |  | 1,277 |
Contract liabilities (Deferred revenue) |  |  |
Micro-transaction and subscription revenue | 12,622 |  |  | 12,886 |
Royalties and license fees | 116 |  |  | 307 |
Website and application development | 841 |  |  | 600 |
| ₩ | 13,579 |  |  | ₩ | 13,793 |
Changes in Contract Liabilities | Changes in contract liabilities for the years ended December 31, 2021, 2020 and 2019 are as follows:
| 2021 |  | 2020 |  | 2019
| (In millions of Korean won)
Balance at January 1 | ₩ | 13,793 |  |  | ₩ | 10,846 |  |  | ₩ | 20,074 |
Increase related to micro-transaction and subscription revenue | 26,380 |  |  | 29,124 |  |  | 66,232 |
Increase related to royalties and license fees | 204 |  |  | 14,330 |  |  | — |
Increase related to website and application development contract | 8,456 |  |  | 4,580 |  |  | 5,038 |
Decrease upon satisfaction of performance obligations - micro-transaction and subscription revenue | (26,645) |  |  | (24,980) |  |  | (69,507) |
Decrease upon satisfaction of performance obligations -royalties and license fees | (394) |  |  | (15,426) |  |  | (5,407) |
Decrease due to termination of contract | — |  |  | — |  |  | (413) |
Decrease upon satisfaction of performance obligations - website and application development | (8,215) |  |  | (4,681) |  |  | (5,171) |
Balance at December 31 | ₩ | 13,579 |  |  | ₩ | 13,793 |  |  | ₩ | 10,846 |
Transaction Price Allocated to Unsatisfied Performance Obligation | Transaction price allocated to unsatisfied performance obligations as of December 31, 2021, 2020 and 2019 are as follows:
| 2021 |  | 2020 |  | 2019
| (In millions of Korean won)
Micro-transaction and subscription revenue |  |  |  |  |
Online game | ₩ | 9,374 |  |  | ₩ | 8,418 |  |  | ₩ | 5,358 |
Mobile game | 3,248 |  |  | 4,468 |  |  | 3,384 |
| 12,622 |  |  | 12,886 |  |  | 8,742 |
Royalties and license fees |  |  |  |  |
Online game | 96 |  |  | 286 |  |  | 573 |
Mobile game | 21 |  |  | 21 |  |  | 830 |
| 117 |  |  | 307 |  |  | 1,403 |
Website and application development | 840 |  |  | 600 |  |  | 701 |
Total | ₩ | 13,579 |  |  | ₩ | 13,793 |  |  | ₩ | 10,846 |
Details of Incremental Costs of Obtaining Contract Recognized as Assets | Details of incremental costs of obtaining a contract recognized as assets as of and for the years ended December 31, 2021 and 2020 are as follows:
| December 31, 2021 |  | December 31, 2020
| (In millions of Korean won)
Incremental costs of obtaining a contract | ₩ | 861 |  |  | ₩ | 1,277 |
Details of Amortization Costs Recognized as Cost of Revenues | Details of incremental costs of obtaining a contract recognized as cost of revenues as of December 31, 2021, 2020 and 2019 are as follows:
| 2021 |  | 2020 |  | 2019
| (In millions of Korean won)
Incremental costs of obtaining a contract recognized as cost of revenues | ₩ | 1,277 |  |  | ₩ | 998 |  |  | ₩ | 2,036 |

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- Definition The disclosure of assets recognised from the costs to obtain or fulfil contracts with customers. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 128 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_128_a&doctype=Standard -URIDate 2021-03-24 + Details
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