Field manual · September 9, 2026
Castle Busters Patch 1.17 and 1.16: Changes Explained
Read the named changes to Sir Rally, support, upgrades, placement and combat visuals in patch 1.17, with the hero additions and visual rollout in 1.16.
Patch 1.17 reports a Sir Rally cast delay, Settings support and Help Center access, a matchmaking test, removal of the 40-level limit per upgrade action, and several placement, healing and visual fixes. Patch 1.16 introduced Sir Rally, Leif and Wolfie.
Field order
Patch 1.17: changes by system
Use the system column to find the change that affects your question. These entries summarize the official release notes; they do not confirm the installed build or the outcome on a particular account.
| System | What patch 1.17 says | Detail that matters |
|---|---|---|
| Sir Rally | Adds a cast delay. | No delay duration is stated. |
| Support | Adds support contact and a Help Center in Settings. | Settings is the documented entry; an exact sequence of buttons is not given here. |
| Matchmaking | Tests revised matchmaking. | The matching formula is not specified. |
| Unit upgrades | Removes the limit of 40 unit levels per upgrade action. | 40 refers to the former single-action increment, not the unit’s maximum level. |
| Foundations interface | Fixes foundations UI disappearing during enemy turns. | The note concerns the interface, not a building’s physical survival. |
| Utility healing | Fixes healing in certain situations. | The note does not give a universal healing guarantee. |
| Unit placement | Fixes placement after swaps. | The named case is placement following a swap. |
| Poison-cloud visuals | Makes the cloud visuals match the attack radius. | This is a visual correction, not a stated damage or radius increase. |
| Bots | Fixes bots leaving the map edge. | It does not say bots have been removed from the game. |
Field order
The upgrade limit is about a single action
The number 40 describes how many unit levels the old upgrade action could add at once. Patch 1.17 announces the removal of that per-action limit. It does not announce a new maximum unit level, cheaper upgrades or free levels.
Field order
Patch 1.16: heroes and updated visuals
Patch 1.16 introduced Sir Rally, Leif and Wolfie and says the updated hero visuals had finished rolling out. Keep those names with the 1.16 record when comparing an older unit description or portrait.
| Change | Patch 1.16 statement |
|---|---|
| New heroes | Sir Rally, Leif and Wolfie. |
| Hero visuals | The updated hero visuals finished rolling out. |
Field order
Read the affected guide
The unit reference covers the named hero descriptions. The formation rules page explains their position-sensitive conditions and the placement-related notes. Use those pages for the detail behind a hero or formation question.
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