> For the complete documentation index, see [llms.txt](https://docs.sovrun.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sovrun.org/build-with-sovrun/chain-tactics/game-mechanics.md).

# Game Mechanics

**Grid and Phases:**

* Played on a 9x9 grid.
* Preparation Phase:
  * Buy Phase: Players have 10 gold to purchase units (90 seconds).
  * Spawn Phase: Units are placed in the first two rows (90 seconds). Failure to "Reveal" forfeits the match.
* Battle Phase: Turn-based moves and attacks aim to destroy the opponent’s Fortress.\ <br>

**Units and Stats:**

* Each unit has Health, Movement, Blindspot, and Range. Costs and abilities vary to support diverse strategies.
* Units include a free Fortress plus purchasable options:

<table data-header-hidden><thead><tr><th width="110.2421875"></th><th width="108.19140625"></th><th width="105.046875"></th><th width="138.92578125"></th><th></th><th></th></tr></thead><tbody><tr><td>Unit</td><td>Gold Cost</td><td>Health</td><td>Movement</td><td>Blindspot</td><td>Range Pattern</td></tr><tr><td>Footsoldier</td><td>1</td><td>Varies</td><td>Varies</td><td>Varies</td><td>Cross</td></tr><tr><td>Lancer</td><td>1</td><td>Varies</td><td>Varies</td><td>Varies</td><td>Cross</td></tr><tr><td>Priest</td><td>1</td><td>Varies</td><td>Varies</td><td>Varies</td><td>Square</td></tr><tr><td>Archer</td><td>2</td><td>Varies</td><td>Varies</td><td>2</td><td>Cross (3 sq)</td></tr><tr><td>Fire Mage</td><td>2</td><td>Varies</td><td>Varies</td><td>Varies</td><td>Diagonal</td></tr><tr><td>Ice Mage</td><td>2</td><td>Varies</td><td>Varies</td><td>Varies</td><td>Diagonal</td></tr><tr><td>Fortress</td><td>0</td><td>Varies</td><td>0</td><td>N/A</td><td>N/A</td></tr></tbody></table>

\
**Combat Rules:**

* One move and one attack per turn, executed by the same unit.
* 45-second turn timer with a 10-15 second grace period to account for blockchain latency.
* All actions are recorded on-chain, ensuring integrity and auditability.