Find the best tool for your job

Krea vs Retro Diffusion

Concept art & 2D assets · checked · Compare different tools

Krea

#9 in Concept art & 2D assets Not enough evidence yet

Try Krea ↗

Retro Diffusion

#5 in Concept art & 2D assets Provisional: limited evidence

Try Retro Diffusion ↗

Retro Diffusion ranks higher in Concept art & 2D assets (#5 vs #9). How we score

How they differ

How each one works, from its own docs.

KreaMulti-model creative suite with its own image model and a live canvas

Draw-and-see Realtime generation and training a model on your own art style in one app, with many image models side by side. Midjourney is for mood and style exploration; ChatGPT is for precise edits to existing images.

Best for: Pre-production concept art: characters, environments and prop variations in a consistent game style.

Retro DiffusionPalette-locked pixel-art generator

Enforces true pixel grids and fixed palettes with a large preset style library, and also makes pixel-textured low-poly 3D. PixelLab leans on editor-based rotation and skeleton animation; Midjourney and ChatGPT do not lock palettes.

Best for: Game-ready pixel sprites, tiles, icons and retro low-poly props that must hit exact pixel sizes and a set palette.

Workflow

Krea

Retro Diffusion

Where you use it

Web app (also an iOS app), plugins for Photoshop, Illustrator and Blender, an API and an MCP server

Web app, REST API and hosted MCP server; separate one-time-purchase Aseprite extension runs older local models and is being phased out in favour of Retro Diffusion's own native pixel-art editor

You give it

A text prompt, reference images, a rough drawing in Realtime, or your own images to train a style

Text prompt plus a chosen style; optional input image, up to 9 reference images (RD Pro), a colour palette, a sprite to animate

You get

Images, upscales; also video and textured 3D models (GLB, OBJ, FBX) from third-party models

Pixel-art PNGs about 16-384px depending on style, batches up to 16; GIF or sprite-sheet animations; tilesets; low-poly 3D models (GLB, OBJ, engine exports)

How you steer it

Choice of model (Krea 3 and others), trained LoRA styles, moodboards and node workflows

90+ preset styles across Fast, Plus and Pro models, custom user styles, forced input palette, img2img strength, seamless tiling, background removal

How you refine results

Realtime renders update as you draw; edit images with words; chain steps in Nodes

Img2img re-runs, inpaint, outpaint and edit tools, palette conversion, reuse a Pro result as a reference for consistent characters; 3D models can be revised

Pick Krea if you want

  • Fast concept iteration in your own art style

Pick Retro Diffusion if you want

  • Authentic grid-aligned, limited-palette output (claimed by desk and competitor reviews)
  • Pay-once Aseprite extension or cheap per-image web credits

Watch out: web UI is the weakest part (competitor review)

How they score

Each signal is out of 100. Higher wins.

KreaRetro Diffusion
Benchmarks
No data
No data
Expert reviews
No data
No data
User reports
No data
92
Game-dev fit
72
94
See all 1 sources

Krea

No independent sources yet.

Retro Diffusion

Vendor claims (not scored): Krea: 'For game developers': generate character designs, enhance environment art, upscale textures and create marketing materials; train a private model on your own art style. source · Krea: Krea 3 is Krea's in-house image editing model; Krea cites Krea 3 Ultra at #4 on Arena's Multi-Image Edit leaderboard (vendor claim, not checked). source · Retro Diffusion: Models trained with experienced pixel artists for grid-aligned, limited-palette output; also distributed via Replicate, Poe and Scenario. source

At a glance

KreaRetro Diffusion
Paid plans fromUS$9/moPay as you go
Free planFree planFree trial or credits only
Engine pluginsFile export onlyGodotUnityUnreal
API / MCPAPI + Official MCPAPI + Official MCP
Commercial usePaid plans onlyAllowed
Full comparison: every fact, with sources
Tool
KreaCommercial on paid plans only
Retro DiffusionCommercial use allowed
Best for
Fast concept iteration in your own art style
Pay-per-image pixel-art sprites and tiles
What it does
AI creative suite for images, video and 3D in one web app. Its own Krea 3 image model, Realtime (renders as you type or draw) and LoRA training on your own art style suit game concept art; it also runs third-party image, video and 3D models such as Nano Banana, Seedance, Kling, Veo and Hunyuan3D.
Pixel-art-specific image models for sprites, tiles, tilesets and animations, plus low-poly 3D model generation with export for Godot, Unity and Unreal. Its separate Aseprite extension is being phased out in favour of Retro Diffusion's own native pixel-art editor.
Verdict
For artists who want fast concept iteration: Krea's own image model, live drawing-to-image and a style model trained on your own art, with other image models in the same app. Commercial use needs a paid plan, and the terms word it more loosely than the pricing page.
For pixel-art devs who want pay-per-image pricing with no subscription; the site says all output is yours for commercial use.
Tasks●
Concept art & 2D assets
Concept art & 2D assets, 3D model generation
Engines●
Any (standard file export / engine-agnostic)
GodotUnityUnreal
Free plan●
Free plan 100 units a day, no credit card
Free trial or credits only US$0.50 starting balance for new accounts, no card
Pricing
Free US$0 (100 units a day, no card). Basic US$9/month (5,000 units), Pro US$35/month (20,000 units), Max US$105/month (60,000 units), Business US$200/month (80,000 units, up to 50 members); yearly works out at US$5, US$21, US$63 and US$160 a month. source
Pay per generation from a prepaid balance: images US$0.03 (RD Fast), US$0.06 (RD Plus), US$0.18 (RD Pro), RD Mini from US$0.03; animations from US$0.07 a run; tilesets from US$0.06 a run; Low-Poly 3D from US$0.10 a model. Top up from US$5; the balance never expires. New accounts start with US$0.50 of balance, no card needed. source
Export formats●
Images; 3D models as GLB, OBJ, FBX, PLY, STL source
PNG, GIF, sprite sheets, GLB, OBJ source
Commercial use●
Commercial on paid plans only
Krea's pricing FAQ says Basic, Pro, Max, Business and Enterprise plans include a commercial licence to use generated content for commercial purposes 'without restrictions'. Its Terms of Use (last updated 20 May 2024) are softer: Krea 'may allow you to commercialize certain Content' subject to your tier, and 'reserves the right to modify the terms of commercial use' at any time. Free-plan commercial use isn't stated clearly. source
Commercial use allowed
Official FAQ: "Everything you generate is yours, for personal and commercial projects alike." source
Revenue share / caps
Not stated by vendor
Not stated by vendor
API
Available. REST API and JS SDK for 40+ image and video models, upscaling and LoRA training source
Available. REST API (pay per generation) source
MCP server
Official MCP server. Hosted MCP server (OAuth, or an API token) source
Official MCP server. Hosted MCP server source
Last checked

Rows marked ● differ between the two tools. Licence badges: green = commercial use allowed (including any free plan or trial), amber = paid plans only, restricted, or allowed but with no free plan, red = not allowed, grey = not stated by vendor or not applicable. Read the vendor's current terms before you ship.

Get tool changes by email

A short weekly email from Gamedev AI Tools: new AI tools for game devs, new guides and comparisons, ranking changes and price or licence changes. You also get our free cheat sheet of the top 3 tools for every job. Every email has an unsubscribe link.