Would you say its more than even say 50 max? There are over 2k cryptos. Most are worth nothing. But how many are actually worth something?
Throughout 2018 it was a bad year for the development of all crypto, but this did not at all make them disappear from the market (dead) everything was there, and it went on as usual. I think maybe only 0.1% of Alt-Coin's population is on the market. Because until now they can still survive and it seems they still deserve to be relied on even though the competition between them still continues to this day.