We don't know exactly how many different coins hacked. I know a lot of coins which only traded specially in cryptopia even valuable & coinmarketcap top ranking coin. Given below list is only ERC-20 token:
1. Dentacoin
2. KyberNetwork
3. MobileGo
4. Bonpay
5. OmiseGo
5. Indahash
6. IvyKoin Public Network Tokens
7. Metal
8. Tenxpay
9. ZRX
10. Unibright
11. Ethbits