BlastMini and Hero Forge take fundamentally different approaches to creating custom D&D miniatures. Hero Forge uses a parts-based builder where you select pre-modeled components. BlastMini uses AI to generate entirely new 3D models from text descriptions. Neither approach is universally "better" — the right choice depends on what you need.
This comparison walks through the key differences so you can decide which fits your play style.
The Core Difference: AI vs Asset Library
Hero Forge works like a character creation screen in a video game. You choose a body type, pick a head, select armor pieces, add weapons, adjust the pose, and pick colors. Every component was modeled by Hero Forge's artists. The results are polished and always structurally sound for 3D printing, but you can only combine what exists in their library. If your character has a feature they haven't made an asset for — say, a specific homebrew creature design or a unique weapon — you can't create it.
BlastMini uses AI to generate models from natural language. You describe your character ("a kenku rogue perched on a rooftop with a crossbow and tattered cloak") and BlastMini's AI creates detailed concept art, then converts it into a 3D model. Because the AI generates new geometry rather than assembling parts, you can create designs that don't exist in any library. The tradeoff is that AI output is less predictable — each generation is unique, and sometimes the result needs a re-roll.
Feature Comparison
| Feature | BlastMini | Hero Forge |
|---|---|---|
| Creation method | AI text-to-3D (describe in words) | Parts builder (select components) |
| Customization limit | Unlimited — anything you can describe | Limited to available parts library |
| Battle map generation | ✅ Yes — AI-generated VTT maps | ❌ No |
| Consistency | Varies per generation (re-roll if needed) | Deterministic — same inputs → same output |
| Speed | 2–5 minutes per model | 10–30 minutes of manual building |
| Export formats | STL, OBJ, GLB | STL (paid add-on) |
| Physical printing | Download files, print yourself or use a service | Order printed and optionally painted from Hero Forge |
| Free tier | 10 mini concepts + 3 maps, free STL (on paid plans) | Build and view free, pay $7.99+ per STL download |
| Concept art | ✅ Generates detailed front/back character sheet | ❌ 3D only (no 2D art) |
When to Choose BlastMini
- Your character is custom or homebrew — If it doesn't exist in Hero Forge's parts library (unusual creatures, homebrew races, unique fusions), AI generation is the only option short of sculpting it yourself.
- You need battle maps too — BlastMini is the only platform that generates both miniatures and VTT-ready battle maps. If you're preparing an entire session, one tool handles both.
- You want concept art — BlastMini generates detailed 2D character sheets (front and back views) before the 3D model. Many DMs use this concept art in session notes, character handouts, or digital character sheets even without printing the 3D model.
- Speed matters — Generating a model from a text prompt takes 2–5 minutes vs. 10–30 minutes of manual Hero Forge building.
- You want to generate in bulk — If you need 20 NPCs for a campaign, describing them in text is far faster than building each one manually.
When to Choose Hero Forge
- You need exact control — If you have a very specific vision and want to adjust every detail (exact armor piece, hand position, facial expression), Hero Forge's builder gives you direct control.
- Print reliability is critical — Every Hero Forge model is designed with 3D printing in mind. There's near-zero risk of unprintable geometry. AI-generated models sometimes need minor cleanup.
- You want physical printing handled for you — Hero Forge offers print-on-demand (even pre-painted miniatures shipped to your door). BlastMini provides files only.
- You prefer visual building — Some people prefer clicking through menus over writing text descriptions. Hero Forge's visual interface is polished and intuitive.
Can You Use Both?
Yes, and many players do. A common workflow:
- Use BlastMini for homebrew creatures, unique NPCs, and battle maps that don't exist in any parts library.
- Use Hero Forge for player characters where you want precise control over every detail and guaranteed print quality.
- Use BlastMini's concept art as reference when building in Hero Forge — generate the character sheet first, then match the Hero Forge build to the AI art.
Hero Forge gives you control and consistency within its asset library. BlastMini gives you unlimited creative freedom through AI generation and adds battle maps. They solve different problems, and the best setup for a serious DM may be using both.
Try Both for Free
Hero Forge lets you build and preview miniatures for free (you pay only to download the STL or order a print). BlastMini's free tier includes 10 miniature concepts and 3 battle maps with no credit card required. You can compare the outputs side by side before committing to either platform.