Clash Royale would be so much more engaging if you could:<p><pre><code>  Queue up chests to unlock

  Earn &quot;keys&quot; when you win and your chest slots are full: Silver chests take 10 keys, etc. Still enables whales to spend their money, but makes it feel like you can earn *something* by playing.
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I think even with this it would still be decently monetized, while increasing the feeling of player agency and engagement.