Delverium currently limits an animal pen to 24 interior tiles in each direction. A 20×28 interior fails because one side exceeds 24, even though its 560 tiles are fewer than a 24×24 pen's 576. Measure inside the fence and shorten the longer side; meeting this size cap alone does not prove the pen satisfies every other requirement.
Sagestone says the game tests the connected pen tiles for width and height separately, with a maximum internal size of 24×24. The limit is not simply a 576-tile area budget. The developer described this as the current rule, partly for performance reasons; it may change later.
Interior dimensions
Size-cap result
Why
20×28
Fails
28 is over the 24-tile limit.
10×30
Fails
30 is over the 24-tile limit, despite the smaller area.
20×24
Within this cap
Both sides are at most 24; other pen rules still apply.
If a smaller pen still shows an invalid-size message
This is a developer explanation of the current check, not a Kingy gameplay test. The discussion contains one player's report and a developer reply; it does not establish a broader rise in pen questions.
Count the open tiles inside the fence, rather than the outer fence footprint. Check that neither interior side exceeds 24.
Shorten any side above 24 and check the game's pen status again before moving animals or rebuilding a larger layout.
If both interior sides are within 24 and the game still rejects the pen, record the dimensions and build version. This developer reply does not diagnose every other pen condition.
Sources · 1Official · checked 25 Oct 2026 · Research checked 20 Oct 2026
Animal pen size: developer clarification ↗Developer reply #2 says connected pen tiles are checked by interior width and height, each capped at 24. The player reports a 20-by-28 rejection; Kingy has not measured pen behavior in-game.Official ·
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