Pity the humble microbe. Have they not organs, dimensions, senses? If you prick them, do they not leak nuclear fluids? if you tickle them, do they not lodge under your fingernail and cause nasty rashes? And if you show them a starry sky, will they not grow dissatisfied with their noxious lodgings and seek ascension?

Huje Tower is an icky biological construction game modelled on the peerless World of Goo. The Hujo, small, sewer-bound bacteria with big puppy-dog eyes, have developed a taste for heights after glimpsing the world beyond the manhole cover. Your job is to click, drag and glue them together to make living ladders.

Each level requires you to reach a certain height. Red bacteria are basic, one-use building blocks, while greens can be repositioned at whim, blacks force obstructions aside, browns dangle down as counterweights and yellows adhere immovably to certain materials.

Props like balloons and wheels can be assimilated to create mobile structures. Sometimes you'll have to activate sleeping bacteria by brushing them with their conscious fellows.

Should keep you occupied till five. Impulse J is a simpler variation on the theme.

Play Huje Tower