Infobox:Stone wall (research)
| Stone wall (research) | 
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 Cost  | 
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| ✖ 10 | |
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 Prototype type  | 
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| 
 Internal name  | 
 stone-walls  | 
| 
 Allows  | 
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| 
 Effects  | 
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| Stone wall (research) | Edit | 
| 
 Cost  | 
|
| ✖ 10 | |
| 
 Prototype type  | 
|
| 
 Internal name  | 
 stone-walls  | 
| 
 Allows  | 
|
| 
 Effects  | 
|