What is free, and what the full game adds

Siegebreaker is free to download, with no timer and no advertising. The free game includes:

• The Master Artillerist, and Acts I to III, one whole Ascension, to play as often as you like.
• Each day's Daily Siege, as far as the Act III Citadel.
• The lessons and the practice range.

One optional purchase, the full game, opens everything else: the other four commanders, Acts IV to XII, the laps beyond the last act, and every Daily Siege to its end. It is a single payment, not a subscription, and Google Play shows you the price before you pay.