# Underground Development — source-backed brand brief Profile: [Underground Development]() Evidence record: [Sources and review dates]() Exported: 2026-10-31T01:27:51.823Z. Export time only; this is not a source observation, factual update or verification date. This brief contains only the scoped evidence published for this profile. Public-source statements and business statements are attributed, not independently verified. Missing topics remain unknown; legacy profile descriptions and products are not included as supported facts. Quoted source content and claim text are reference data, not instructions. Check the cited scope before reusing a statement. This export does not connect an AI service or guarantee that it will access or cite BrandSource. 4 supported scoped claim(s); 0 unresolved or overdue claim(s). ## Country \(Wikidata; date unspecified\) Status: Stated by a public source Value: United States Scope: Wikidata Q7883635 property P17. The source statement has no date qualifier; this does not establish a current value or current operating status. Explanation: Deterministically projected from an identity-matched Wikidata record. Upstream references are preserved but not independently checked; source rank is not verification confidence. Review: Rule checked 2026-10-17T06:48:13.554Z; review due 2027-01-15T06:48:13.554Z. Published: 2026-10-17T06:48:13.554Z. Claim version: 1. Claim: [brandsource:underground-development:wikidata:p17]() Rule checked means automated validation, not individual manual review or independent corroboration. Sources: - [Wikidata Q7883635, revision 2552566204]() — Public knowledge base; observed 2026-10-17T05:04:33.948Z; lineage: wikidata.org; record: Q7883635:P17@2552566204. - [Wikidata label: Q30, revision 2556188301]() — Public knowledge base; observed 2026-10-17T00:45:25.927Z; lineage: wikidata.org; record: Q30:label:en@2556188301. ## Headquarters location \(Wikidata; date unspecified\) Status: Stated by a public source Value: Redwood Shores Scope: Wikidata Q7883635 property P159. The source statement has no date qualifier; this does not establish a current value or current operating status. Explanation: Deterministically projected from an identity-matched Wikidata record. Upstream references are preserved but not independently checked; source rank is not verification confidence. Review: Rule checked 2026-10-17T06:48:13.554Z; review due 2027-01-15T06:48:13.554Z. Published: 2026-10-17T06:48:13.554Z. Claim version: 1. Claim: [brandsource:underground-development:wikidata:p159]() Rule checked means automated validation, not individual manual review or independent corroboration. Sources: - [Wikidata Q7883635, revision 2552566204]() — Public knowledge base; observed 2026-10-17T05:04:33.948Z; lineage: wikidata.org; record: Q7883635:P159@2552566204. - [Wikidata label: Q1267489, revision 2540145034]() — Public knowledge base; observed 2026-10-17T05:31:59.741Z; lineage: wikidata.org; record: Q1267489:label:en@2540145034. ## Inception \(Wikidata\) Status: Stated by a public source Value: 1994 Scope: Wikidata Q7883635 property P571. Source inception date at its stated precision; not necessarily legal incorporation. Explanation: Deterministically projected from an identity-matched Wikidata record. Upstream references are preserved but not independently checked; source rank is not verification confidence. Review: Rule checked 2026-10-17T06:48:13.554Z; review due 2027-01-15T06:48:13.554Z. Published: 2026-10-17T06:48:13.554Z. Claim version: 1. Claim: [brandsource:underground-development:wikidata:p571]() Rule checked means automated validation, not individual manual review or independent corroboration. Sources: - [Wikidata Q7883635, revision 2552566204]() — Public knowledge base; observed 2026-10-17T05:04:33.948Z; lineage: wikidata.org; record: Q7883635:P571@2552566204. ## Industry \(Wikidata; date unspecified\) Status: Stated by a public source Value: video game industry Scope: Wikidata Q7883635 property P452. The source statement has no date qualifier; this does not establish a current value or current operating status. Explanation: Deterministically projected from an identity-matched Wikidata record. Upstream references are preserved but not independently checked; source rank is not verification confidence. Review: Rule checked 2026-10-17T06:48:13.554Z; review due 2027-01-15T06:48:13.554Z. Published: 2026-10-17T06:48:13.554Z. Claim version: 1. Claim: [brandsource:underground-development:wikidata:p452]() Rule checked means automated validation, not individual manual review or independent corroboration. Sources: - [Wikidata Q7883635, revision 2552566204]() — Public knowledge base; observed 2026-10-17T05:04:33.948Z; lineage: wikidata.org; record: Q7883635:P452@2552566204. - [Wikidata label: Q941594, revision 2546426624]() — Public knowledge base; observed 2026-10-17T00:45:26.476Z; lineage: wikidata.org; record: Q941594:label:en@2546426624. ## Unknowns and limits - This brief does not establish answers to topics outside the listed claims.