This one is an oddity. It's not really an adventure though it's certainly not an arcade game. If you think of it as a strategy game you won't be far wrong.

The raid consists of two parts. In the first you cross hostile territory, patrolled by enemy guards. This really means moving round a grid, the extremes of which connect so that horizontal travel is effectively circular.

At the northern edge lie a series of obstacles, but around the countryside useful objects such as ropes and torches are scattered. There's also a uniform for disguise and a gun, plus an invaluable radio and map which alert you to where those patrols are heading.

Once you've found the sector that leads to the castle, which is very much trial and error, you're into the second part, where you have to search a series of rooms, only two of which contain items you want.

Behind the other doors lie tests of your reactions, powers of observation and mental agility. If you fail at this stage it's straight back to the start as you're shot as a traitor!

With its spartan graphics this won't be making any top 10 of the year's games but it is a challenge in an abstract sense, and even if it does remind you of the sort of thing you'd play with cardboard counters, it's a reasonable diversion for the price.