Both tools generate most of the map for you. One starts from 3D themes, one starts from a written scene. Here’s how to pick.
Choose Dungeon Alchemist if you want a 3D room-builder you own: pick a theme, draw the layout, and it fills each room procedurally, ready to hand-tweak, with walls, lights, and doors carrying into your VTT. Choose NeedAMap if you’d rather type the scene than assemble it: any setting you can describe, nothing to install, and your first 5 maps free.
| Dungeon Alchemist | NeedAMap | |
|---|---|---|
| What it is | 3D mapmaking app with procedurally filled rooms, sold on Steam | Scene-to-map tool: you describe the encounter and get a finished map |
| How a map gets made | You draw the room layout and pick themes; it places walls, floors, objects, and lighting, then you tweak by hand | You write a few sentences, then pick shape, style, and resolution |
| Time to a table-ready map | Fast: rooms fill in seconds, plus tweaking to taste | Under a minute |
| Price | $44.99 one-time on Steam, in Early Access since 2022 | Free: 5 maps. $4/month for 15 credits that roll over up to 30, or a $3 pack of 10 credits that never expires |
| Commercial use | Allowed up to $100,000 annual revenue; workshop assets excluded | Allowed on every tier, including free |
| Genres | Built-in themes, strongest in fantasy; scenes outside the themes are out of reach | Fantasy, sci-fi, horror, western, modern, and anything else you can describe |
| Platform | Windows, Mac, and Linux desktop app | Runs in the browser on any machine |
| VTT export | Walls, lights, and doors carry into VTT imports | Standard image export; at 2K that’s about 146 pixels per grid square, above Roll20’s recommendation |
Dungeon Alchemist is the better fit in three situations. You want control after generation: it fills rooms for you, then lets you move, rotate, and swap every object until the map matches the encounter in your head. You run dynamic lighting: walls, lights, and doors carry into VTT imports, which saves real setup time in Foundry. And you prefer buying software once: $44.99 on Steam, offline, yours for as long as you keep playing.
The philosophies are closer than they look: both tools generate most of the map for you. The difference is the input. Dungeon Alchemist starts from its theme library, so the maps it makes are the maps its themes contain. NeedAMap starts from a written description, so a neon-soaked back alley or a rusted starship corridor is one sentence away instead of unavailable. If your campaigns wander across genres, that input difference is the whole decision.
Curious how the described-and-done side works? See how NeedAMap works, compare plans, or see every battle map maker compared.
For encounter maps, yes, and the trade is concrete: Dungeon Alchemist gives you 3D rooms you can hand-tweak inside its themes, while NeedAMap turns any written scene into a finished map in under a minute, in the browser, starting free.
Dungeon Alchemist is $44.99 up front and yours forever. NeedAMap starts free with 5 maps, then a $3 pack of 10 credits or $4/month for 15 that roll over up to 30. If you want to pay nothing until a tool proves itself, start with the free maps.
Yes, and its exports carry walls, lights, and doors into VTTs that support them, which is its standout feature. NeedAMap maps import anywhere as standard images; at 2K that works out to about 146 pixels per grid square, above Roll20’s recommendation.
