FAQ

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No account required. Your save is stored locally in your browser's localStorage. No login, no server-side profile.

Yes. The game is optimised for both desktop and mobile browsers. It's also installable as a PWA (Progressive Web App) — add it to your home screen from your browser menu for a near-native experience.

Yes. After the first load, REMNANTS works offline via the service worker. Resources also accumulate offline — when you return, the game calculates how much time has passed and awards the appropriate resources.

The game auto-saves to localStorage frequently. You can also open the Save & Load panel from the menu to export a manual save string or generate a Share Link for cross-device import.

Save data lives in your browser's localStorage. It can be lost if you:

• Cleared your browser data / history
• Used private / incognito mode (localStorage clears on tab close)
• Switched browsers or devices without exporting a save
• Uninstalled and reinstalled the browser

To prevent loss: export a save string from the Save & Load panel regularly, or use the Share Link to back up to another device.

Open the Save & Load panel and tap Generate Share Link. This creates a compressed URL containing your full save. Open that URL on your other device and tap Import to load it. You can also copy the raw save string and paste it on the target device.

Population declines when you have a Food or Water deficit (consumption exceeds production), or during a severe/blackout power event. Check:

• Your Food net rate — if negative, build more Farms or upgrade existing ones.
• Your Water net rate — if negative, build more Water Collectors.
• Power supply — a Blackout causes active population decline. Build more Generators.

A Brownout happens when your Power consumption exceeds your Power production. There are four severity tiers:

• Minor — small across-the-board production penalty.
• Brownout — significant penalty; Tech and Influence generation hit.
• Severe — population growth halts; most production heavily penalised.
• Blackout — population begins to decline. Build generators immediately.

Hover the Power icon in the resource bar for a full breakdown of supply vs demand.

Raids begin once your population reaches 10+. The default interval between raids is 10 minutes, reduced if you have fewer Watchtowers. Build Watchtowers to push the interval up — each one adds 60 seconds of breathing room.

If raiders breach a wall, you lose a portion of your resources. If all walls fall, the penalty is severe. You don't lose buildings or population directly from a raid loss, but the resource drain can cascade into a Food/Water deficit. Build Watchtowers and Walls early to prevent breaches.

Expeditions let you deploy population squads on missions across the wasteland. Each mission has a risk level — Tier 1 is safe, Tier 3 risks casualties. Rewards include Influence, Archive Points, Blueprints, and the chance to rescue named Specialists with passive bonuses. See the full Expeditions Guide →

Specialists are 6 unique named survivors you can rescue via Expedition missions. Each one grants a permanent passive bonus while they're in your colony — production boosts, reduced costs, and more. They persist through Echo Resets.

The 2× and 4× speed buttons genuinely multiply resource production using a speed-scaled tick delta. They're not cosmetic — using 4× during an active session produces 4× the resources in the same real time. Useful for pushing through a grind phase quickly.

Echo Reset is the prestige mechanic in REMNANTS. When you trigger it, your colony resets to zero — but you earn Echo Fragments based on your run's depth. Fragments are spent in the Echo Forge on permanent upgrades that make every future run faster and stronger.

The following persist through Echo Reset:

• Echo Fragments earned
• Echo Forge upgrades purchased
• Run Traits earned this run
• Faction Bond progress
• World Archive chapters unlocked
• All achievements
• Specialists you've recruited

Buildings, resources, research, and population reset to zero.

There's no hard rule, but a good signal is when growth has slowed to a crawl — you're waiting several minutes between purchases and late research feels out of reach. You don't need to "finish" the run. An early reset earns fragments faster through more frequent loops. See the Echo Reset Guide → for details.

The Echo Forge is where you spend Echo Fragments on 22 permanent upgrades across 4 tiers. Examples: Head Start (begin each run with bonus resources), Grand Architect (−15% building costs), Memory Eternal (raises the Echo bonus cap from 1000% to 2000%), Echo Cascade (overflow above the cap counts at 15%), Extended Network (+1 expedition slot). Forge upgrades stack across resets and fundamentally change run speed.

Echo Signal Events are random events that spawn during your run with a short collection window. Multiple event types exist, each with different effects — resource windfalls, temporary bonuses, or story fragments. Watch for the signal indicator and act fast before the window closes.

The World Archive is a 10-chapter MERIDIAN story arc. One chapter unlocks per run. The story reveals what caused the Cascade (the apocalyptic event), who the Commander is, and the truth behind MERIDIAN — the entity referenced in radio transmissions throughout the game. It's worth reading.

The Cascade is the apocalyptic collapse event that ended the old world and set Year Zero. Its exact nature is revealed through the World Archive. The game begins after the Cascade — you are rebuilding in its aftermath.

• Make sure the tab is active (browsers throttle background tabs).
• Close other memory-heavy tabs.
• Try a different browser — Chrome and Firefox typically perform best.
• Disable browser extensions that inject scripts into every page.
• If the game has been open for many hours, refresh the tab.

REMNANTS is a solo indie project. All rights reserved — not open source.