SUDS (included games)

This game's source, Killworth's "Roman", is cited in item 50 of the Fourth edition of the Inform Designer's Manual, epitomizing a style of game design led by throwing all conceivable obstacles one can come up with between points A and B:

Another approach is to chain backwards from a goal, repeatedly asking “how can I obstruct this further?” Peter Killworth describes an entire game this way. Thus you need to pay a debt to a Senator, so you need to steal a bust from a temple, but that means impersonating a priest, by sacrificing a chicken with a gladius, which means catching a chicken (you scare it with a cat, but the cat must be attracted by a mouse, which you need to catch with a mousetrap): and the gladius isn't just lying around, either. You also need a torch, which

"… needs soaking in oil first, just as candles need wax to burn. So we'd better organise a pool of oil through which the player can walk … When the player gets to a source of flame – how about a brazier of coals, which will have to be untakeable? – he can attempt to light his torch. It isn't oily, it burns to a stump well-nigh instantly … If it is oily, it'll catch fire … No, that's too simple. If a player is soaked in oil too, he'll probably catch fire too! … We'll create a damp, misty area, where the player is assassinated by a runaway slave, unless he enters while on fire. Then he will be safe, because the mist will condense on his body … So the poor player, staggering around and on fire, will try the mist, but to his disappointment the torch will go out permanently too! The solution is trivial – he must drop the torch before entering the mist."

This kind of plotting, with puzzles strung together like beads onto a necklace, offers the considerable advantage of lending coherency. But it is also liable to make long, linear sequences of puzzles which must be completed in an exact order.