Tiamat is described as 'Is Web 2.0 Tile Mapper; Ideal for creating miniature scale maps for role playing and miniature games' and is a role-playing game in the games category. There are more than 10 games similar to Tiamat for a variety of platforms, including Web-based, Windows, Mac, Linux and Android apps. The best Tiamat alternative is Dungeondraft. It's not free, so if you're looking for a free alternative, you could try Inkarnate or AutoREALM. Other Tiamat like games are Mipui, Eigengrau's Generator, Dungeon Maker Sketch and Campaign Cartographer.
Dynamic map/dungeon painter designed for (virtual) tabletop roleplay games.
Dungeondraft is the most popular Windows, Mac & Linux alternative to Tiamat.
Dungeondraft is the most popular commercial alternative to Tiamat.
Inkarnate is an all-in-one fantasy mapmaking platform with a free version and a huge library of assets. With Inkarnate, one can create world and region maps, city and village maps, battlemaps and interiors, as well as scenery maps.
Inkarnate is the most popular Web-based alternative to Tiamat.
Inkarnate is the most popular free alternative to Tiamat.
AutoREALM is a Free GNU mapping software (a "cartographer") that can design maps of castles, cities, dungeons and more. AutoREALM is generally used by Role-playing Game practicants who enjoy doing their own maps. But it could fits the needs of other people.
AutoREALM is the most popular Open Source alternative to Tiamat.
Mipui is an online, grid-based map editor, with focus on simplicity and collaboration - all edits appear in real-time to other viewers.
Eigengrau's Essential Establishment Generator is a tabletop procedural generation tool for towns, NPCs and much more. It creates paragraphs of text suitable to be read directly to players during a game.
Eigengrau's Generator is the most popular Self-Hosted alternative to Tiamat.
Make your own maps in a hand drawn style for your favourite tabletop rpg games like Dungeons and Dragons (DnD). Save your time by using this tool to create maps effortlessly instead of drawning them from scratch. You can even export, edit and print them!
Powerful, fast and intuitive map-making tool to create beautiful and highly detailed maps for tabletop games, campaigns and more.
Drag and drop tile based mapping program. Multiple layers, create and import your own tilesets, scale for printing and many more features.
With Fractal Mapper, creating worlds has never been so easy! Fractal Mapper is a high-powered mapping system that lets gamers create a wide variety of of maps - dungeons, continents, cities, and more! With it's easy to use interface, powerful features, and unique...
donjon.bin.sh is a freely accessible, online collection of random generators and other tools for pen-and-paper role-playing games. The collection provides a comprehensive range of advanced generators for creating names, demographics, maps, adventures and even entire worlds.
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Tiamat has detailed tiles and images for a variety of settings. Mipui is just shapes on a grid. You can't create a forest or a beach or a mountain or cave or anything similar. You could only make a castle or a dungeon or something along those lines that is just walls and rooms, with minimal details.