- Unity Test Tools https://www.assetstore.unity3d.com/#/content/13802
- Sample Assets (beta) https://www.assetstore.unity3d.com/#/content/14474
- Unity Samples: Robot Lab https://www.assetstore.unity3d.com/#/content/7006
- Stylized foliages pack https://www.assetstore.unity3d.com/#/content/13392
- Knightly Ancient Weapon Pack https://www.assetstore.unity3d.com/#/content/3127
- Construction Site Pack https://www.assetstore.unity3d.com/#/content/3316
- Medieval Buildings Collection https://www.assetstore.unity3d.com/#/content/3592
- Snack Machines https://www.assetstore.unity3d.com/#/content/3517
- Medieval Gold https://www.assetstore.unity3d.com/#/content/14162
- Dry Stone Wall with Leafy Vines https://www.assetstore.unity3d.com/#/content/6236
- London Street Assets https://www.assetstore.unity3d.com/#/content/6720
- Reinforced Water Tower https://www.assetstore.unity3d.com/#/content/5915
- Subway Cars https://www.assetstore.unity3d.com/#/content/2609
- Unity Technologies Assets https://www.assetstore.unity3d.com/#/publisher/1
- Simple Wooden Bridge https://www.assetstore.unity3d.com/#/content/819
- Vintage Phone Booth https://www.assetstore.unity3d.com/#/content/2607
- Vintage 1940s Car https://www.assetstore.unity3d.com/#/content/2608
- Classic Car https://www.assetstore.unity3d.com/#/content/2618
- Classic American 50's Car https://www.assetstore.unity3d.com/#/content/2610
- Vending machine https://www.assetstore.unity3d.com/#/content/8392
- Record player https://www.assetstore.unity3d.com/#/content/4249
- Space Robot Kyle https://www.assetstore.unity3d.com/#/content/4696
- Create Script Dialog https://www.assetstore.unity3d.com/#/content/2668
- Bootcamp https://www.assetstore.unity3d.com/#/content/1376
- Car Tutorial https://www.assetstore.unity3d.com/#/content/10
- Unity Projects: Stealth https://www.assetstore.unity3d.com/#/content/7677
- 3rd Person Shooter https://www.assetstore.unity3d.com/#/content/9
- 3D Platform Tutorial https://www.assetstore.unity3d.com/#/content/5087
- Penelope Complete Project https://www.assetstore.unity3d.com/#/content/15
- Simple Particle Pack https://www.assetstore.unity3d.com/#/content/3045
- Angry Bots https://www.assetstore.unity3d.com/#/content/12175
- MVN Live Animation https://www.assetstore.unity3d.com/#/content/11338
- Flow Free https://www.assetstore.unity3d.com/#/content/5720
- Simple Rain FX https://www.assetstore.unity3d.com/#/content/8902
- Hard Surface Shaders Free https://www.assetstore.unity3d.com/#/content/729
- Skybox Volume 2 (Nebula) https://www.assetstore.unity3d.com/#/content/3392
- Fragmentum Free https://www.assetstore.unity3d.com/#/content/10162
- Free MatCap Shaders https://www.assetstore.unity3d.com/#/content/8221
- Nobiax / Yughues (Textures) https://www.assetstore.unity3d.com/#/publisher/4986
- Ray Larabie (Fonts) https://www.assetstore.unity3d.com/#/publisher/1780 Note: Has a TRS-80 Color Computer font, how nerdy is that?
- Prototype Textures https://www.assetstore.unity3d.com/#/content/1809
- Sky5X One https://www.assetstore.unity3d.com/#/content/6332
- 10+1 Standard Materials https://www.assetstore.unity3d.com/#/content/12349
- Construction Site Pack https://www.assetstore.unity3d.com/#/content/3316
PAID:
And here are some really nice paid apps which look pretty nice at a cursory glance.
- BIG Environment Pack - Nice! https://www.assetstore.unity3d.com/#/content/3277
- BIG Environment Pack Vol.3 – Wow! https://www.assetstore.unity3d.com/#/content/13198
- Medieval Environment Pack https://www.assetstore.unity3d.com/#/content/6859
- Ancient Environment https://www.assetstore.unity3d.com/#/content/8746
- Autumnal Nature Pack https://www.assetstore.unity3d.com/#/content/3649
- Nature Pack https://www.assetstore.unity3d.com/#/content/1021
- Urban Construction Pack https://www.assetstore.unity3d.com/#/content/8081
- Highway Construction Set https://www.assetstore.unity3d.com/#/content/4246
- Modern Ruins https://www.assetstore.unity3d.com/#/content/4136
- RCP: Retro City Pack https://www.assetstore.unity3d.com/#/content/8707
- Medieval Construction Kit https://www.assetstore.unity3d.com/#/content/2684
- Fantasy Village 01 - Pack 2 https://www.assetstore.unity3d.com/#/content/2651
- Fantasy Megapack https://www.assetstore.unity3d.com/#/content/8355
- Top-Down Assets https://www.assetstore.unity3d.com/#/content/5806
- Urban Construction Pack https://www.assetstore.unity3d.com/#/content/8081
- HE - Abandoned Manor MegaPack v.1 https://www.assetstore.unity3d.com/#/content/8429
- Dark City https://www.assetstore.unity3d.com/#/content/9905
- Highway Construction Set https://www.assetstore.unity3d.com/#/content/4246
- Apocalyptic City 2 https://www.assetstore.unity3d.com/#/content/13532
- Retro City Pack II https://www.assetstore.unity3d.com/#/content/11109
- Playmaker https://www.assetstore.unity3d.com/#/content/368
- EasyRoads3D Pro https://www.assetstore.unity3d.com/#/content/469
- Cartoon FX Pack https://www.assetstore.unity3d.com/#/content/4010
- Scifi Level Kit https://www.assetstore.unity3d.com/#/content/12253
- WorldComposer https://www.assetstore.unity3d.com/#/content/13238
- Rocky Hills Terrain Pack https://www.assetstore.unity3d.com/#/content/3360
- 3D Cloud Models https://www.assetstore.unity3d.com/#/content/4027