This is my personal experience of earning free crypto by playing games or doing other stuff on the internet.
I'm not in any way promoting applications/games and will not ask you to use my code. I just want to share my journey hoping it could help some of you.
What I've earned isn't much and I believe you earn a lot more by trading but who can say no to free money.
With that said, I'll be starting this series with a mobile game that I'm find addictive. I'm using Android so you can find this game on the google play store but I'm not sure if you can find it on the apple store.
This game is called SaruTobi LN, you can download it from this link

Before starting this game, you'll need to setup a lightning wallet to receive SATS (one-hundred-millionth of a Bitcoin or 0.00000001 BTC). I haven't done much research on these wallet and I'm currently using Wallet of Satoshi. I find this wallet really user friendly. If you have other suggestions, please drop it in the comments.
In this game, there is two modes of playing:
1) Flyby
2) Swing Thing
The first mode Flyby:
In this mode, you would swing the monkey that is holding a rope by tapping the screen then sliding the screen to the right for the monkey to let go of the rope. During his trajectory, the monkey will be hitting bananas, coins or letters in his way. Keep in mind, you can only collect one coin through a jump and you must withdraw this coin to your wallet in order for coins to reappear in your next jump.
The coins collected are either silver (10 SATS) or gold (15 SATS) and there is a limit of about 200 - 250 SATS that can be collected in one day. If you exceed this limit, you will face a screen saying you have reached your limit and will have to to withdraw the coin in 24 hours.
Regarding the letters, in Flyby mode, you'll be collecting the word SARUTOBI. I was expecting to get more SATS once I collected this word but disappointingly, I only got free bananas when i collected the letters. Still it was an achievement unlocked :)
The bananas that you are collecting in each jump can be used to buy superpowers, I will not go through each of the superpowers but they are necessary to unlock the second mode Swing Thing.

The second mode Swing Thing:
In order to unlock this mode, you need to jump get a record of 1000m in Flyby, it's almost impossible to achieve this without superpowers that were bought with the free banana collected in Flyby.
In this mode, you would swing the monkey holding the rope in order to collect enough momentum to reach the next rope. Once you do, you would let go of the rope you are holding and grab the next rope once you reach it. In the same manner as the first mode, you will find bananas, coins and letters in this mode. The only difference is that the letters here would be of the word BITCOIN.

Just like any game on the play store, you can use your credit/debit card to buy character skin or extra bananas.
Hope you enjoy the game and may the crypto be with you.