To think about game characters, I want to look at 3D models which are available online.
All3DP (3D print site) has a review of free downloads of people models:
https://all3dp.com/1/free-3d-models-download-best-sites-3d-archive-3d/
- websites
- 3d archives
- content repositories
| Site | Model Types | Free or Paid? |
|---|---|---|
| Autodesk Online Gallery | 3D Printing, Engineering, Architecture/Visualization | Free |
| Unity Asset Store | Architecture/Visualization, Animation, Gaming | Both |
| Instructables | 3D Printing | Free |
| NASA 3D Resources | 3D Printing, Archive/Documentation | Free |
| Thingiverse | 3D Printing | Free |
| 3D Warehouse | 3D Printing, Architecture/Visualization, Animation, Gaming | Free |
| TurboSquid | Architecture/Visualization, Gaming, Graphic Design | Free |
| GrabCAD | 3D Printing, Engineering | Both |
| Smithsonian X3D | 3D Printing, Animation, Graphic Design | Free |
| Sketchfab | 3D Printing, Animation, Gaming | Free |
| TinkerCAD Things | 3D Printing, Animation, Gaming | Free |
| CGTrader | 3D Printing, Architecture/Visualization, Animation, Gaming, Graphic Design | Both |
| 3dMdb | 3D Printing, Architecture/Visualization, Animation, Gaming, Graphic Design | Both |
| Free3D | Architecture/Visualization, Animation, Gaming, Graphic Design | Free |
| 3dsky | Architecture/Visualization, Animation, Graphic Design | Freemium |
| MyMiniFactory | 3D Printing | Free |
| Evermotion | Architecture/Visualization, Animation, Graphic Design | Free |
| OpenGameArt | Gaming | Free |
| Archive 3D | Architecture/Visualization, Animation, Graphic Design | Free |
| CADNav | Architecture/Visualization, Animation, Gaming, Graphic Design | Free |
| Blendswap | 3D Printing, Animation, Gaming, Graphic Design | Free |
| Trace Parts | 3D Printing, Engineering, Architecture/Visualization | Free |
| STLFinder | 3D Printing, Animation, Gaming, Graphic Design | Both |
| Pinshape | 3D Printing | Both |
| 3DModelFree | Architecture/Visualization, Animation, Graphic Design | Free |
| 3DExport | 3D Printing, Animation, Gaming, Graphic Design | Both |
| 3DContentCentral | Engineering | Free |
| ShareCG | Animation, Graphic Design | Free |
| Clara.io | 3D Printing, Animation, Graphic Design | Freemium |
| Cults | 3D Printing | Both |
| YouMagine | 3D Printing | Free |
| PixelLab | Animation, Graphic Design | Both |
| Kenney | Gaming | Both |
| FlyingArchitecture | Animation, Graphic Desgin | Freemium |
| 3D Digital Doubles | Animation, Gaming, Graphic Design | Paid |
| Viz-People | Architecture/Visualization, Graphic Design | Both |
| Renderpeople | Architecture/Visualization, Graphic Design | Both |
| Design Connected | Architecture/Visualization, Graphic Design | Both |
| 3D Scanstore | Animation, Gaming | Both |
| Syncronia | Architecture/Visualization, Animation, Graphic Design | Both |
| Dimensiva | Animation, Graphic Design | Both |
| 3Delicious | Architecture/Visualization, Animation, Graphic Design | Free |
| 3DShook | 3D Printing | Both |
| Bitgem | Gaming | Both |
| Orchard | 3D Printing, Engineering | Free |
| Human Alloy | Architecture/Visualization, Graphic Design | Both |
| gCreate | 3D Printing | Free |
| MorphoSource | 3D Printing, Archive/Documentation | Free |
| GB3D Type Fossils | 3D Printing, Archive/Documentation | Free |
17 have game assets.
Kenney https://kenney.nl/assets/animated-characters
Kenney game studio creates games and free to use game assets.

3DScanStore https://www.3dscanstore.com/
Most of the realistic models are for sale except this one:
https://www.3dscanstore.com/blog/Free-3D-Head-Model

Bitgem is a small 3D CGI studio building high-quality, style consistent hand painted 3d models and textures for the gaming and entertainment industry.

There’s only a very few free models and they are all very low poly. Mostly objects.