Ark Nova · Board game rules
Can I play Conservation cards from the discard pile?
Quick answer
No, you cannot play Conservation Project cards from the discard pile. They can only be played from your hand or (with an upgraded Association action) from the display.
Details
Conservation Project cards are played either from your hand during the Association action (page 14) or, if you have upgraded the Association action, from the display within your reputation range (page 16). In the latter case, you must pay an additional cost equal to the folder number of the card.
The discard pile is not a valid source for playing Conservation Project cards. During breaks, the discard pile is used to replenish the display (page 18), but this does not make discarded cards directly playable. The rules do not mention any mechanism to retrieve or play cards from the discard pile outside of display replenishment.
Watch out: While some cards (e.g., Sponsor or Animal cards) may have effects that interact with the discard pile, Conservation Project cards have no such exceptions in the provided excerpts. Always ensure you play them from your hand or the display (with upgrades).