Everything is gacha. Amount of materials drop ~ gacha. Artifacts drops ~ gacha. Even upgrading the subtstats per artifacts is gacha. Only good about this game are those people working in costumer service. Aside from that, android players with good hardware but from a certain brand has bad graphics. I used to play on my ipad but now on my Android device, believe me, the graphics is irritating. I'm talking about no damage text, no grass, no frozen waters, etc.