connect cable to destroy invaders

Swipe over an area of pearls of the equal color without passing over the same pearl twice.
The longer the chain, the bigger the bonus. Collect those shiny pearls for additional points.

There's 49 achievements in the game. Can you get all of them?

Manage your Web of Trust!

Which key rings have you certified, and which key owners have vouched for the key rings you currently hold? What trust have you accorded to them, and what relevance does it have?

Decide for yourself.

How long would you survive in a world full of zombies?

Finally, a game first approach to math that is not just a boring flash card app!

Turn your smartphone or tablet into a modern baby monitor! (full version)

‘This book is rich in peculiarities for the interested observer’ - The Independent

The second edition of the Oxford Dictionary of Astronomy contains over 4,300 up-to-date entries covering all aspects of astronomy. Compiled with the help of over 20 expert contributors under the editorship of renowned author and broadcaster Ian Ridpath, A Dictionary of Astronomy covers everything from space exploration and the equipment involved, to astrophysics, cosmology, and the concept of time.

The Collins Chinese Dictionary offers the learner of Chinese or English an essential reference tool. This completely up-to-date dictionary is designed for intermediate learners of Chinese or English up to university level and beyond.

The Concise Oxford German Dictionary is an advanced-level dictionary, ideal for students and adult learners combining German with another subject.

Completely updated to include all the latest vocabulary, the Concise Oxford-Paravia Italian Dictionary contains over 175,000 words and phrases, and 290,000 translations. Easy to use, with a clear layout, it features fun and informative cultural notes on life and living in the Italian-speaking world.

Compiled by expert teams of Spanish and English lexicographers, the Concise Oxford Spanish Dictionary contains over 175,000 words and phrases alongside 240,000 translations.

The world's leading English-Thai dictionary!

This Concise Oxford Thesaurus is ideal for helping you pinpoint exactly the right word, whether you are writing a letter, preparing a report, composing an essay, writing creatively, or solving a crossword. Over 300,000 alternative words cover everyday vocabulary as well as more unusual and specialist words completed with clear labeling of informal, dialect, literary, and technical items.

This best-selling and market-leading dictionary contains over 12,000 clear and concise entries, covering all aspects of medical science. Written by a team of medical experts, the entries are accessible and jargon-free, and complemented by over 140 illustrations and diagrams. The 8th edition has been fully revised and updated to cover changes in this fast-moving field.

The Concise Oxford American Dictionary includes more than 180,000 entries and definitions, complete with pronunciations, parts of speech, syllabification, inflected forms, and derivatives. All Oxford American dictionaries include an easy-to-use respelling system to show how entries are pronounced. It also represents common American English sounds using simple and familiar markup for each entry.

Featuring more than 56,000 entries, this mobile app based on thoroughly updated Seventh Edition contains the medical terminology used in more than 30 of today's fastest growing health profession areas—plus comprehensive inclusion of entries suited for the nursing field.

This dictionary bundle packs an extraordinary amount of information into a handy app that is practical, dependable, affordable, and easy to read. The bundle includes the Concise Oxford American Dictionary and the Concise Oxford American Thesaurus.

A fun free matching puzzle game for everyone.

Collins Mini Gem English-Spanish & Spanish-English Dictionary is an up-to-date, easy-reference dictionary, ideal for learners of Spanish and English of all ages. The dictionary covers about 10,000 words from each language with Collins pre-recorded audio pronunciation for each word.

A Trajectory Based Archery Game where you Train to be the next Cupid!