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The Horus Heresy: Battle of Tallarn - Underworld Campaign
| App ID | 638760 |
| App Type | DLC |
| Developers | HexWar Games |
| Categories | Single-player, Steam Achievements, Steam Cloud, Downloadable Content, Steam Trading Cards |
| Genres | Strategy |
| Release Date | 30 Jun, 2017 |
Supported Languages
| English |
Screenshots
