I've played Oil Rush and Trine 1.
I can't say much about Oil Rush until it is finished, because the campaign is not out until then. It looks good so far tho. It's different from other RTS games in that it is node-based, rather than troop-based. Not all features have been implemented yet. The graphics are great and engine is very efficient.
Trine 1 was very good, but there was one problem. It ended quite abruptly. I have a feeling they ran out of time and funds. If they hadn't run out of these, I think the game would have won some awards. I hope Trine 2 is longer and more time is spent on it. I'm willing to pay more if it is done right.
I vote for both.