Terraforming Mars: Ares Expedition
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Can upgraded phase cards be used in the base game, solo and Crisis?
Several experienced players agree on BGG; no official ruling.
- soccerref · Community · 2025-01-10
- zenxacred · Community · 2025-01-10
- jujulautre · Community · 2025-05-24
- raptor777777 · Community · 2025-12-28
Yes. They are optional and work in the base game, in solo, and in Crisis co-op.
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