Jisho

(私は)昼ご飯の時間までゲームをする (or します instead of する if the sentence needs to be polite)

私は - I (this is optional and typically omitted in natural Japanese if the subject of the sentence is clear from context)
昼ご飯 - ひるごはん lunch
の - connects two nouns
時間 - じかん time
まで - until
ゲームをする - to play games

Thank you!

I'm not so sure if you will see this again but if you do, is it possible if we could become friends somehow? It would be nice to get help from one person.