Blocking the ACU with quickly started but unfinished 1x1 structures which decay only very slowly such as T1 point defense, is often considered unfair as the ACU’s pathfinding can get ruined to a point where the ACU is completely stuck and effectively unable to move, because of the unbuilt structures. While the mechanic of blocking an opponents movement by quickly starting a building in front of them is a valid strategy, most buildings in the game such as factories or other structures larger than 1x1 leave gaps inbetween them even if built right next to each other, allowing some way to escape while still slowing down movement as the ACU walked around them. As 1x1 structures can completely block movement when built next to each other, their very slow decay makes them far more oppressive when used for such a strategy. To allow some more counterplay, these structures will now decay more quickly when below 10% completion. This means that quickly spamming many barely started T1 PD’s for example will now also have them disappear more quickly, making it more difficult to fully trap the enemy, giving them a better chance to escape while still retaining the advantage of slowing the enemy down.
When below 10% completion structures with a 1x1 footprint now have the decay rate of walls
Affected Structures
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T1 Point Defence
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T1 Static Anit-Air
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T1 Torpedo Launchers