Theme Park

Rides range from Teacups and Haunted Houses to the biggest most elaborate roller-coaster you can design, and water rides that loop around other rides.

Shops must also be included so that the visitors can buy food, drinks, and souvenirs - the cunning player will combine salt, sugar, and caffeine settings to maximize consumer interest.

Staff must be hired to keep everything running smoothly, and they will only work for what they consider a fair rate of pay.

You are competing against other Theme Parks, so don't let them get an advantage over you - monitor your success in attracting customers and financial viability closely using the supplied statistics pages.

More important, ensure that research is adequately funded to produce new rides.

It can be played in three modes - Sandbox level lets you concentrate on the park design elements, while Sim and Full add more strategic features.

Theme Park for Nintendo DS is currently worth €11.78 loose, €4.44 complete in box, and €8.75 factory sealed. Prices are based on real sales and update regularly on Gamevaro.

Theme Park has a steady sales history on the tracked marketplaces, meaning it trades hands regularly and isn't considered particularly rare.

Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. For Theme Park, loose is €11.78 and CIB is €4.44 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.

The PAL version of Theme Park is currently worth €11.78 loose, versus €8.76 for NTSC-U. Regional price differences usually come down to print run size and regional collector demand.