Revenue from Contracts with Customers - Schedule of Account Receivables, Incremental Costs of Obtaining a Contract, and Contract Liabilities (Details) - KRW (₩) ₩ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Disclosure of disaggregation of revenue from contracts with customers [line items] | ||
| Accounts receivable | ₩ 56,318 | ₩ 81,152 |
| Incremental costs of obtaining a contract (Prepaid expenses) | 1,826 | 2,386 |
| Contract liabilities (Deferred revenue) | 21,910 | 29,332 |
| Micro-transaction revenue | ||
| Disclosure of disaggregation of revenue from contracts with customers [line items] | ||
| Contract liabilities (Deferred revenue) | 19,787 | 25,290 |
| Royalties and license fees | ||
| Disclosure of disaggregation of revenue from contracts with customers [line items] | ||
| Contract liabilities (Deferred revenue) | 2,094 | 4,037 |
| Others | ||
| Disclosure of disaggregation of revenue from contracts with customers [line items] | ||
| Contract liabilities (Deferred revenue) | ₩ 29 | ₩ 5 |