Gemsweeper

After restoring Topcatzintlmex the Olmec spirit, he asks you to restore his homeland, with tonnes of gems as your reward. This involves being presented with grids of gems (from 5 by 5 to 30 by 30, generally increasing as you work through over 200 levels), and working out which squares contain treasure, and which do not. The player must move the mouse around the screen clicking as appropriate, switching (using the right mouse button, or by clicking on the appropriate symbols) between the hand to collect the gems, and a hammer to smash the normal squares. You have four pots of magic glue, with one used up every time you accidentally destroy a gem. There is a time limit; clicking on cursed tiles causes a loss of time.

To work out which are which, there are numbers next to each row and column. If there is a single number, you can know that there is one continuous sequence of this number of gems. Multiple numbers mean multiple sequences of good squares, with one or more dud squares in between. The trick is to combine these sequences in your mind across the horizontal and vertical plains, to satisfy both criteria at once.

After completing each temple’s set of levels, you are presented with a bonus level. Completed lines are removed and replaced, and the aim is to collect a full sack’s worth on gems within the time limit.