As a test I added a shake-event to a (C2 space blaster) demo and it works. The screen shakes.
It does not work in my own game however.
Before I start searching and experimenting why, are there situations where the shake would not work?
(as a workaround I tried to find magi cam, but I cannot find this plugin)
Edit: I think the problem was: giving more objects a shake at the same time, so I only gave 1 object the shake-effect. But it is not very pretty.
This topic can be considered closed.