"玩到了10点"的英文表达可以是"played until 10 o'clock"。
"Played"是动词play的过去式，表示"玩"的意思。"Until"是介词，表示"直到……为止"的意思。"10 o'clock"是时间表达方式，表示"10点钟"。
例句：
I played video games until 10 o'clock last night. (我昨晚玩电子游戏玩到了10点。)
We played hide and seek until 10 o'clock in the park. (我们在公园里玩了捉迷藏直到10点。)
The party went on until 10 o'clock. (聚会一直持续到了10点。)