Windows are entry points if left empty. Every window frame needs something in it. The right choice depends on your tier, what you need to see, and whether you need to shoot out.
Window Types
Window frames need something in them. Wood bars and metal bars stop entry but not bullets. Embrasures are fixed shooting ports. Glass blocks projectiles both ways. Shutters layer on top of any of them and can be opened or closed.
Wooden Window Bars
Craft: 100 wood - No BP required. No workbench
Stops entry. Does not stop bullets. Temporary early-game cover only. Replace as soon as you have metal frags.
Metal Window Bars
Craft: 150 metal frags - BP required - Workbench 1
The standard mid-game window. You can shoot through it, enemies can shoot back. Good for shooting floors and honeycomb cells where you need access. 500 HP.
Reinforced Glass Window
Craft: 4 HQM - BP required - Workbench 3
Blocks projectiles in both directions. You can see out but cannot shoot through it. Use this on your TC room, loot room, or any window facing the main approach. 500 HP.
Strengthened Glass Window
Craft: 50 metal frags - BP required - Workbench 2
Mid-tier glass. Blocks view slightly and cannot be shot through. Cheaper than reinforced glass and good for airlock windows or secondary windows where HQM is tight. 350 HP.
Wood Shutters
Craft: 200 wood - BP required - Workbench 1
Layer on top of window bars. Open to shoot, close to block line of sight. Cannot be locked. Anyone can open them from either side. Only useful on upper floors where enemies cannot reach from outside. Pair with glass to prevent enemies opening them from the other side.
Metal Horizontal Embrasure
Craft: 200 metal frags - BP required - Workbench 1
Fixed shooting port. You shoot out through a narrow horizontal slot. Blocks most incoming fire while giving you a firing angle. Common on shooting floors.
Metal Vertical Embrasure
Craft: 200 metal frags - BP required - Workbench 1
Same as horizontal but rotated. Use vertical when you need to track targets moving side to side, horizontal when tracking targets moving up or down. Both have the same stats.
Raid Costs
Windows are independent of the wall tier they sit in. A reinforced glass window in a stone wall still costs 12 satchels to remove. Window bars do not add HP to the wall they sit in.
| Window | HP | Satchels | Rockets | C4 |
|---|---|---|---|---|
| Wooden Window Bars | 250 | 3 | 1 | 1 |
| Metal Window Bars | 500 | 12 | 3 | 2 |
| Strengthened Glass Window | 350 | 9 | 2 | 1 |
| Reinforced Glass Window | 500 | 12 | 3 | 2 |
| Metal Embrasure (H or V) | 500 | 12 | 3 | 2 |
| Wood Shutters | 200 | 2 | 1 | 1 |