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You can mark a rectangular block of fuel tiles if the fuel tiles at the four corners of the block have the same color.
The weapons at your disposal are time bombs that freeze the alien ships at their path, and missile rockets that push them back.
Once pushed outside your primary perimeter, the alien ships are destroyed.
The fuel tiles you mark also generate additional income. Use the income to buy more missile rockets and time bombs.
If the block you mark triggers a bonus goal, your weapons get a significant power-up.
As you level up, you face different alien ships, and they can counter attacks with their own weapons! For example, their shutdown rockets can make some fuel tiles unselectable! The higher the level, the deadlier their attacks become.
Defeat the aliens in under 5 minutes to win 3 gold stars!
From the creator of Word Edge, Beautiful Worm, Number Pharaoh, Memon's Quest, Super Math Invaders, Digi Crush, Kungfu Brain and Word Bridge, Primary is a fast-paced action puzzler that challenges your mental maths, resource management skill and strategic thinking!
Keywords: Cubles, Match-3, Candy Crush, Triple Town, Bejeweled, Mathematics, ufo, aliens, flat UI, brain training
Recently changed in this version:
- added 10 achievements.
- adjusted difficulty. higher levels are harder now.
- changed the 'time to victory' record from minutes to seconds for higher resolution tracking.