Do I have what's necessary to start playing through the series?

https://preview.redd.it/hc0rwdc9y8mf1.png?width=359&format=png&auto=webp&s=5bccf96ccd9f7574e7ef71edb916b26e992f2dbf

I have the KINGDOM HEARTS INTEGRUM MASTERPIECE collection on steam because I wanted to get into Kingdom Hearts. I apologise if this has been asked numerous times and I know İntegrum collection is the "complete" collection but I just wanted to make sure regardless. Thanks in advance.