I'm beginning to get seriously worried about your mental condition. Only a fool would have returned to Doom after your last fiasco. Yet here you are again, bright-eyed and bushy-tailed, just begging for something awful to happen. Believe me, you won't have long to wait!

The planet Doom is dying - any fool can see that. The crust is shuddering as if it were alive, and belching volcanoes are turning the purple sky black. Any adventurer with half a brain would have turned the ship around, pointed its nose at the nearest star cluster, and hit the hyperdrive. But not you! Just because you survived the first two episodes of the Doom Trilogy (Countdown To Doom and Return To Doom) it doesn't mean that you are invincible. It's also fair to observe that crash-landing your ship into a crevasse is hardly an auspicious beginning to this final quest.

There is of course an 'up-side' to all of this gloom and 'Doom'; you do, after all, have your trusty robot dog to help you. Although he tends to be as much good as a chocolate tea-pot most of the time, he does understand 'Fetch' so I suppose he will come in handy.

Once you appreciate that there are armed robots, all manner of fanged space creatures, and lethal electronic defence mechanisms all impatiently awaiting your arrival, you will begint to get the message that the 'Welcome Mat' is not an item which has gained much popularity on this planet. In this all-text adventure the writers have adopted the motto - "Never give a sucker an even break", and the puzzles range from hand to mind-bending.

Not being content with the usual 'Get' and 'Use' style of puzzles, the authors seem to be pushing our concept of adventures into new realms. Some of the mental challenges appear to be dervived as a result of conversations who have spent their declining years discussing the number of angels who should theoretically be able to balance on the point of a pin. The upshot is a game which I suspect will tax the average player considerably, which is fine if you appreciate what you are getting into, but otherwise it just might break your heart.

Much of the action takes place amidst the volanic landscape of the planet, with excursions into the ruined buildings of the long dead inhabitants. Players of the previous Doom games will recognise the familiar characters and objects. The robots are back, as is the black metal rod with the rusty star on the end. With typical Topologika humour, the rod which had one use in the first Doom game and two uses in the second, not turns up with three uses. The game has a surprising conclusion which will certainly catch you unprepared, but it's going to take you a long time to see it.

Topologika has a record for quality adventures, and this game follows the tradition. The standard Help system is included on the disc, and you can use this to obtain increasingly specific nudges when you finally have to admit defeat.

Well, I feel that I have given you all the advice that should be given. However, I can see from the gleam of insanity in your eye that you are impervious to reason, so I wash my hands of you. I wish you luck because you are going to need it.