| Cover | Apr. 12, 2022 |
| Cover [Abstract] | |
| Entity Registrant Name | MINERVA GOLD INC. |
| Entity Central Index Key | 0001854816 |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Emerging Growth Company | true |
| Document Period End Date | Apr. 12, 2022 |
| Entity Ex Transition Period | false |
| Entity Incorporation State Country Code | NV |
| Entity File Number | 333-255403 |
| Entity Tax Identification Number | 98-1588963 |
| Entity Address Address Line 1 | 12/1 Kunayev str |
| Entity Address Address Line 2 | IA 17 |
| Entity Address City Or Town | Nur-Sultan |
| Entity Address Postal Zip Code | 010000 |
| Entity Address Country | KZ |
| City Area Code | 725 |
| Local Phone Number | 225-1800 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
