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Mainframe Defenders

MAINFRAME DEFENDERS - Turn-based tactics centered around gear and unit customization. It offers simple combat, high replayability, and tons of loot. Items don't just provide stats boost, but also offer distinct mechanics that can be combined into powerful builds.

OfficialFeb 25, 2020 · Synthetic DomainIndieRPGStrategyAdjustable DifficultyAdjustable Text SizeWindows · Linux

Current best

$5.99

at GOG · Jul 10

All-time low

$0.59

Jul 6, 2026

Stores tracked

2

sources indexed

Review signal

87%

783 reviews

Mainframe Defenders cover

Current best · GOG

$5.99

Observed Jul 10

View best listing

Observed low target

$0.59 · based on the previous indexed low

KeyDwarf only tracks observations — checkout happens on the store.

Tracked Stores

Best indexed price $5.99 at GOG.

2/2
G

GOG

BestOfficialIn stock

Mainframe Defenders · Region US · Jul 10

$5.99

View listing
S

Steam

OfficialIn stock

Mainframe Defenders · Region US · Jul 12

$5.99

View listing
How trust is scored: KeyDwarf combines source type, known retailer posture, marketplace risk, activation-region warnings, and source transparency. Checkout and support still happen with the external seller.

Price History

4 observations
Low $0.59
Best observed priceAll-time low

All-time low

$0.59

Jul 6, 2026 · GOG

12-week avg

$3.34

4 recent observations

Current vs low

+915%

Current $5.99

Recommendation

Watch for drop

consider setting an alert

Lowest indexed daily price per currency. KeyDwarf tracks listings and does not sell keys.

Media

12 indexed

Common Questions

Where is Mainframe Defenders cheapest right now?

Mainframe Defenders is currently indexed at $5.99 from GOG. Publisher, direct storefront, or authorized retail source. Check the linked store's current terms before acting.

What is the historical low for Mainframe Defenders?

The indexed low for Mainframe Defenders is $0.59 from GOG, observed Jul 6, 2026. The current indexed price is 915% above that low, so KeyDwarf labels it "Watch for drop".

Is the top source safe?

GOG is labeled "Official store" in the index. KeyDwarf tracks the listing and source risk, but checkout and support stay with the external store.

What is the review signal?

Mainframe Defenders has a best indexed review signal of 87%.

Can KeyDwarf notify me about a lower price?

Use the alert target control on this page to save a watch target after sign-in.