"Er alting et spil for dig?"

Translation: Is everything a game for you?

[Jnwulff]

As a rule of thumb

If something is given to someone it is "til". If not it is "for"

[apekop]

The use of 'for' and 'til' keeps tripping me up. Are there any rules for this or is it one of those things you just have to know?

[Uthael]

Yes. It's a game of life, afterall.