Build a Gun Army Best Upgrades - DPS, Variants and Coin Efficiency
Quick answer
Build a Gun Army best upgrades guide focused on upgrade timing, DPS increase, coin efficiency, Shiny and Electric variants, and what to verify.
Quick Answer
The best upgrade in Build a Gun Army is the one that solves your current wave wall for the least coin cost. Do not upgrade only because a weapon looks rare; compare damage gain, firing speed, lane coverage, and whether a variant changes the weapon role.
| Upgrade choice | Best when | Check first |
|---|---|---|
| Buy another weapon | Small enemies leak through lanes. | Does it add more shots where enemies pass? |
| Upgrade current weapon | One weapon fires constantly and carries the lane. | Is the DPS gain visible? |
| Save for a stronger gun | Current weapons are capped or inefficient. | How long will saving slow your wave push? |
| Variant upgrade | Shiny or Electric option appears. | Is the multiplier or effect shown in the UI? |
DPS Increase Formula
Use this simple check before spending:
| Input | Example |
|---|---|
| Current DPS | 500 |
| Upgraded DPS | 750 |
| Added DPS | 250 |
| Upgrade cost | 125,000 coins |
| Cost per +1 DPS | 500 coins |
Lower cost per added DPS is usually better, unless the upgrade solves a specific boss or lane problem.
Variant Upgrade Questions
Shiny and Electric searches are likely to matter more than generic "best upgrades" pages. Track these questions in game:
| Question | Why it matters |
|---|---|
| Does Shiny multiply damage? | Determines whether a variant beats a normal higher-tier weapon. |
| Does Electric add a special effect? | Could change lane clear or boss value. |
| Do variants keep levels? | Affects whether switching variants wastes coins. |
| Can variants appear on every gun? | Changes the weapon database structure. |
Upgrade Timing by Stage
| Stage | Better priority |
|---|---|
| Early waves | Cheap coverage and steady fire. |
| First wall | Upgrade the weapon causing the most kills. |
| Boss or tanky wave | Burst or high single-target DPS. |
| Rebirth prep | Spend only if it helps reach the next multiplier faster. |
What to Record
- Weapon name.
- Current damage.
- Upgraded damage.
- Upgrade cost.
- Variant type.
- Wave where the upgrade helped.
- Screenshot date.
Calculator Note
The current calculator URL should become a real tool. Until then, use the DPS increase formula above and avoid pretending exact values are known.
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