Вторжение с небес: Эссен (промо)

Additional city tile released as a promo at Spiel 2021. Essen (E/B)Blue side (research 6) "During setup, place 1 token in each research room. When you resolve a research room that has a token, discard the token and apply a +1 bonus." Red side (research 5) "During setup, place 1 token in each research room. When you resolve a research room that has a token, you may discard the token to apply a +1 bonus."