Realmz is a fantasy adventure and role-playing video game first developed and published by Fantasoft in 1994 for the Apple Macintosh as shareware.

Fantasoft released a Microsoft Windows-compatible version in 1999, and a science fiction role-playing game based on the Realmz engine, titled New Centurions, in 2001.

Custom Realmz game scenarios can be created with a tool called Divinity - also produced by Fantasoft, LLC.

In fact, Fantasoft was once contacted by TSR about similarities to the Forgotten Realms D&D module, forcing the alteration of a number of elements in Realmz and its scenarios.

Realmz is a Role-playing video game where the player assumes the roles of a party of heroes in fictional adventures.

The turn-based, tile-based game has rules for individual combat and the use of magic spells in fighting while focusing on the medieval-period high fantasy genre.

One unusual feature of the Realmz magic system is that most spells could have their power (damage, area, targets, duration, etc.)

This allowed players who have no knowledge of programming to create scenarios with their own monsters, items, graphics and storyline.

Users have been able to run Realmz through the Classic environment, or using emulation software such as Basilisk II or SheepShaver.

Realmz received positive reviews from magazines and websites in the Macintosh community shortly after its initial release.

Realmz was awarded the Golden Mouse for best shareware adventure game in the Swedish edition of MacWorld.