Found 2 ratings (with comment) on this game

A middle ground title designed by Ted Zale.
Artwork is the typical "pointy sharp end" style that was predominant in the 1960s.
The game also had a German Export version with the same artwork and layout.
The gameplay is somewhat comparable to Joust (Bally, 1969) without the zipper flippers and replaced with an up post.
The flipper up post was another Ted Zale innovation for those that are not aware.
The other primary feature was the secondary "castle gate" up post on the right side which was used as a return to the shooter lane.
Gameplay is generally quite fast.
The left orbit to the top rollovers is a very tight shot.
Overall, an average title with slightly above average artwork.
Not Thaddeus Zalewski's (Ted Zale's) best effort.

It is a simple, but fun game. It has just enough features that, compare to various other EMs, it does not seem boring. Instead, there are several shots to make, often at different times (features tied to match unit) so that you're always challenged with a risky shot to make. Shows itself a worthy predecessor to some of the very popular Bally EM's of the mid 70's.

I personally like the backglass art stye. The cabinet artwork is a bit too simple, but the castle theme still looks cool from a distance. Playfield art is only sufficient, but not bad.