Retroable vs Steel
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Retroable compared with Steel
| Detail | 
Retroable | 
Steel |
|---|
| What it does | Describe a game in a sentence and Retroable builds a real Game Boy ROM you can play in the browser, download, or order on a cartridge.
| GPU-accelerated rigid-body dynamics solver for robot learning
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| Stage | MVP
| Not given
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| Founded | 2026
| Not given
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| Based in | DE
| Not given
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| Pricing model | Freemium
| Open source
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| Pricing | Monthly plans: Starter €19 (200 credits/month), Creator €49 (800 credits/month), Studio €99 (2,000 credits/month), Ultra €199 (5,000 credits/month). Lifetime plans: Starter Lifetime €499, Creator Lifetime €999, Studio Lifetime €1,999, Ultra Lifetime €5,000. Credit packs: Tiny 225 credits €9, Small 4
| Not given
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| Key features | - Browser-based game player for ROMs
- Real Game Boy and Game Boy Color ROM compilation
- Concept art preview before build approval
- Unlimited game revisions with credit system
- Download as ROM file or play in emulator
- Physical cartridge production in custom retail box
- Public game library and sharing
| - 3.8× PhysX throughput on 20 benchmarks geometric mean
- 13.0× performance on heterogeneous task mixtures
- Per-environment work scheduling for efficiency
- Reduced-coordinate articulation dynamics
- Differentiable simulation
- Rigid-deformable coupling support
- Compliant and hydroelastic contact
- 62% less GPU memory than PhysX at matched batch size
- 3.90 million environment steps per second peak throughput
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| What makes it different | - No technical background or programming knowledge required
- Faster and cheaper than general-purpose coding agents
- Specialized for retro console hardware constraints
- Automatic credit refund if game build fails to produce playable result
| - Designed for heterogeneous workloads with different robots and tasks simulated together efficiently
- Integrated into open-source Newton for seamless adoption without separate physics stack
- Supports diverse physical interactions beyond rigid bodies
- Enables scaling of diverse robot experience for general-purpose learning
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ▲ +2 (up) since last check | 67 ● no change since last check |
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| Trust Flow (Majestic) | 2 | 24 |
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| Citation Flow (Majestic) | 12 | 40 |
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| Referring domains (Majestic) | 1 | 2061 |
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4 details filled in for both companies.
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