The experience of investing in play-to-earn games (gameFi) is as follows:

1. The most important thing is that the minimum amount of money needed to play the game must keep increasing. Otherwise, the cash flow into the game will gradually decrease.

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2. The gameFi mechanism is similar to investing money into a DeFi project to "farm" tokens. To profit, the money from selling earned tokens must be more than the initial investment.

4. Another red flag is when a game starts giving "passive income" without playing, like staking tokens for interest. This signals one should urgently withdraw before losing everything.

In summary, when investing in gameFi, choose games with healthy mechanisms, and gradually take profits when hitting targets rather than "HODLing" endlessly.

3. If the minimum amount required to play the game decreases over time, it is a sign the game is declining, so one should withdraw money before losing it all.