OpenGame vs Shalltear Engine

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

OpenGame compared with Shalltear Engine
Detail	OpenGame	Shalltear Engine
What it does	AI game agent for creating HTML5 and 3D browser games	A free, lightweight C++ game engine with native scripting and hot reload
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Paid	Free
Pricing	Starter Credit Pack: $9 USD (60 credits, up to 6 generations). Creator Credit Pack: $19 USD (160 credits, up to 16 generations). Studio Credit Pack: $39 USD (400 credits, up to 40 generations). One-time purchase with no automatic renewal; credits do not expire.	Free to use with no fees, royalties, or revenue share. Full ownership of all created content.
Key features	Create 2D HTML5 and 3D browser games Download game projects as HTML or ZIP files Publish shareable playable links Playtest and iterative refinement No coding required Inspect and edit downloaded code Free planning and idea discussion	Hot reload C++ scripting with state preservation Visual editor with dockable, detachable panels Prefabs with nested variants and live propagation Physics system with multiple joint types Audio mixer with effects and real-time processing Asset import from glTF, FBX, and multiple formats Standalone Windows x64 player with content cooking
What makes it different	AI-powered game creation without coding experience required One-time credit purchases with no expiration Iterative refinement through conversation	Free and open-source with no royalties or revenue share Perpetual license terms that cannot change after build distribution
Community votes	0	0
DR (Domain Rating by Ahrefs)	37 no change since last check	1 no change since last check
Trust Flow (Majestic)	5	0
Citation Flow (Majestic)	30	13
Referring domains (Majestic)	104	4

5 details filled in for both companies.

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