ogame defense calculator

Why Use an OGame Defense Calculator?

In OGame, defense is a balancing act between deterrence and efficiency. Build too little and you invite raids. Build too much and you lock resources into static assets that cannot fly, raid, or save your economy. A defense calculator helps you make intentional decisions by showing exactly how much your setup costs and how expensive it is to recover after a battle.

This page is designed as a practical planning tool. You can model a small anti-farm wall for early colonies, a mixed turtle setup for miner accounts, or a compact bunker around high-value moons and planets.

How This Calculator Works

1) Total Resource Investment

The calculator sums metal, crystal, and deuterium costs for all selected defensive structures. This gives you an immediate view of what you have committed to stationary protection.

2) Defense Points and Metal-Equivalent Value

OGame points are based on total resources spent (1 point per 1,000 resources). The calculator also estimates metal-equivalent value using a common 3:2:1 trade ratio (metal:crystal:deuterium), so you can compare defense spending to mines, fleets, and infrastructure in a single currency.

3) Approximate Build Time

Build time is estimated from structure costs and scaled by Shipyard level, Nanite level, and your selected speed multiplier. This is useful for planning recovery windows after attacks or for deciding if a major defensive upgrade should be split over several days.

4) Expected Permanent Losses After Combat

Defenses can partially rebuild automatically after battle. By combining your expected destruction rate and auto-repair rate, the calculator estimates the permanent loss you actually need to rebuild. It also estimates potential debris field creation if your universe allows defense-to-debris mechanics.

Practical Defense Planning Tips

Early Game (Small Economy, Frequent Raids)

• Use cheap layers: Rocket Launchers and Light Lasers.
• Add a few Heavy Lasers to avoid being countered by tiny fleets.
• Do not overbuild defense before your mines are healthy.

Mid Game (Growing Mines, Regional Pressure)

• Mix in Gauss Cannons to threaten heavier ships.
• Use Ion Cannons as shield-heavy fillers.
• Add at least one Small Shield Dome, and usually a Large Shield Dome as budget allows.

Late Game (High-Value Targets and Timing Attacks)

• Plasma Turrets become your anchor unit.
• Layer cheap fodder (rockets/LL) in front of premium defenses to increase battle rounds.
• Always compare defense investment against active fleet-saving discipline and moon coverage.

Common Mistakes to Avoid

• Building only expensive defense: Without fodder, high-tier defenses can be focused down efficiently.
• Ignoring rebuild economics: A setup that looks strong can still be painful if permanent losses are too costly.
• Assuming defense replaces activity: Active play, timers, and good fleet saves matter more than static walls.
• Copying one ratio everywhere: Border planets, cold deut worlds, and core colonies often need different profiles.

Suggested Baseline Mixes

These are rough planning templates to test in the calculator (not universal best builds):

• Anti-farm basic: 200 Rocket Launchers, 80 Light Lasers, 20 Heavy Lasers, 1 Small Dome.
• Balanced miner: 500 Rocket Launchers, 250 Light Lasers, 100 Heavy Lasers, 30 Gauss, 30 Ion, 12 Plasma, both Domes.
• High-value colony: 1200 Rocket Launchers, 500 Light Lasers, 220 Heavy Lasers, 80 Gauss, 70 Ion, 35 Plasma, both Domes.

Use battle reports and local alliance intelligence to adjust. Your neighbors and universe age matter as much as raw stats.

FAQ

Does this replace a combat simulator?

No. This is an economic and planning calculator. For exact outcomes against specific fleets, use a combat simulator with technologies, rapid fire, and fleet composition.

Why include expected destruction and repair rates?

Because two defenses with the same total cost can have very different long-term maintenance costs after repeated raids.

What if my universe has special settings?

Adjust the speed multiplier and debris percentage fields to approximate your server environment. If your server has unusual balance changes, treat results as directional.

Bottom Line

The best defense strategy in OGame is efficient, layered, and tied to your economy goals. Use this calculator to plan investment, estimate risk, and avoid expensive overbuilding. Defend enough to discourage profitable hits—then put the rest of your resources to work growing income and mobility.