TI4 Rules DeskTwilight Imperium 4
Living Rules Reference · v2.0
6

Adjacency

Marked text is printed in red in LRR v2.0 (new or changed with Prophecy of Kings)

Two system tiles are adjacent to each other if any of the tiles’ sides are touching each other.

6.1
A system that has a wormhole is treated as being adjacent to a system that has a matching wormhole.
6.2
A unit or planet is adjacent to all system tiles that are adjacent to the system tile that contains that unit or planet.
  1. A system is not adjacent to itself.
6.3
A planet is treated as being adjacent to the system that contains that planet.
6.4
Systems that are connected by lines drawn across one or more hyperlane tiles are adjacent for all purposes.
AdjacencyA system is adjacent to the six systems that share an edge with it, and to any system containing a matching wormhole.Activesystemadjacentadjacentadjacentadjacentadjacentadjacentααfar away, butadjacent via α
Adjacency. Systems that share an edge are adjacent. Two systems with matching wormholes (α–α, β–β) are also adjacent to each other, however far apart they are (LRR 6, 101). Our illustration — not rulebook art.

Related topics

44 Hyperlanes58 Movement60 Neighbors100 Wormhole Nexus101 Wormholes

Source: Twilight Imperium: Fourth Edition — Living Rules Reference v2.0 (September 22, 2020), page 9. Rules text reproduced verbatim; the rulebook’s diagrams are omitted (the diagram above is our own).

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