And no7 for mobile only users - You have to download the game via Google store or App Store- Do not try with emulators it wont work as they are trying to fight multi-accounts exploits

7.Crazy Defense Heroes -- https://crazydefenseheroes.com/ (Polygon-Matic)
You earn Tower tokens everyday by collecting stars ingame and by opening the star chest you claim the tower tokens from here (https://crazydefenseheroes.com/earn-tower)

What to expect: I have accumulated around 1000 TOWER tokens by participating in the event for 2 months(about 26euro in today's market price) but not yet claimable in metamask. So around 350-400 Tower tokens for the remaining of February if you start it now.
You may have to own some Polygon for gas fees as they stopped the early promotion that gave everyone 0.25 Matic to use for gas fees and claim the tokens for free.

Tip: Consistency is the key here too. You have to aim for everyday claims as every 7 day you get token bonus.