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There are many faucet out there but one of the most common and still up after over 5 years is
Freebitcoin Faucet
https://freebitco.in/?r=3064850
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If you want a way to make BTC watching Youtube videos here is a nice website:
Bit Tube
https://bittube.me/ref/55700
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If you like browser games with ressource management and game theory with a growing community and some very active developpers that are passionate about their project, I highly recommand this one. Joining under me will grant you a 2.5% return on every ressources you purchase ingame making it faster for you to level up and upgrade your base (generating more BTC per hours/days)
Zero Eclipse
https://zeroeclipse.com/joingalaxy?ref=Elistios
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Another game, based on mining (both as game theory and real browser mining) that is building a future MOBA game on top of their current browser game. (Rely on a lot of add with a lot of NSFW advertisement so be warned) but provide free BTC and a level up system.
Crypto Mining game
https://cryptomininggame.com/?ref=3bc7fe186bf6
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I will try to update this list as I find new and tested sites that I enjoy over time.
Cheers!
Elistios