Featured Experience · Young Learners & Families
A tiny spark. A huge energy mystery.
Phantom Shift turns hidden household energy use into a five-night adventure. Follow SAGE, chase phantom loads, learn which drains matter most, and discover why shifting energy can be smarter than sacrificing comfort.
First Night story · Volt wakes, SAGE points, the path lights up First Night · Volt & SAGE · from the actual game
Welcome back, Energy Explorer
Level 0 — New Spark
Your journey lives only on this device — nothing is sent anywhere.
Energy Explorer 2.0
Every game teaches one part of the energy story. This dashboard gathers the clues saved by this browser and turns them into a clear next step.
Your explorer level
Worlds discovered: Your first stamp is waiting
Strongest skill: Curiosity — every explorer starts here
Next mission: Hunt the hidden power in Phantom Shift
Your explorer style
Still taking shape
Curiosity · First discoveries
Play one world and your explorer style starts to show.
Your world story
Find the energy hiding after dark, then follow the trail from clues to whole-system thinking.
Seven skills, one energy story
Your first game will light up a skill.
Seven skills are waiting. Your first mission will turn one of these pathways bright — there are no wrong places to begin.
Phantom Shift · A good next step
Notice the quiet devices and habits that use power when nobody needs them.
Your explorer view is calculated in this browser. No account, tracking request, or personal profile is created.
Personal learning path
This path is a friendly suggestion, never a lock. Choose any beacon from the world map whenever curiosity pulls you elsewhere.
Discover · Step 1
Phantom Shift
Learn to notice the electricity devices use even when nobody is actively using them.
Energy Passport 2.0
Nothing mysterious: every badge explains what counts, and every world remains one tap away.
Seven world stamps
Play any game to earn your first stamp.
Existing game awards
None unlocked yet — your first game will change that.
A higher challenge
0 of 7 mastered.
Earn 3 stars on all five Phantom Shift nights.
0 of 5 nights at 3 starsScore 75 or higher in all three cases.
0 of 3 cases at 75+Score 75 or higher across all three days.
0 of 3 days at 75+Score 75 or higher on all three grid days.
0 of 3 grid days at 75+Score 75 or higher in all three districts.
0 of 3 districts at 75+Score 75 or higher in all three depot runs.
0 of 3 depot runs at 75+Reach the accepted Level 8 neighbourhood mastery state.
Complete five chapters, then master the neighbourhoodConnect what you learn
Three challenges are waiting.
Discover all seven energy worlds.
0 of 7 worlds discoveredMaster Phantom Shift, Watt Detective and Grid Guardian.
0 of 3 badges masteredMaster Solar City and Retrofit Rally.
0 of 2 badges masteredYour passport reads existing progress from this device only. It never sends game scores, names, or a learner profile anywhere.
Energy Island
Seven regions, one island. Play any world in any order; the highlighted route is only a learning recommendation. Every world you explore lights another beacon, and the five-chapter Retrofit Rally can master Retrofit District.
Every region is still wild. Pick a beacon and start exploring.
Primary company platform
Accueco.ai
From play to practical planning
Choose your energy world
Looking for a shorter strategy or planning simulation? Choose the world that sounds most like you.
Choose your mission
Seven energy worlds. One journey from discovery to transformation. Free browser play, no account.
Diagnose first. Sequence wisely. Transform the neighbourhood.
Retrofit Rally is a five-chapter strategy campaign: learn four distinct buildings, then coordinate homes, a community hub and local shops through one shared-budget neighbourhood capstone. Balance comfort, energy, carbon, cost and resident satisfaction without pretending every good idea fits at once.
Five playable chapters · one neighbourhood transformation campaign
Warm-up Lab · test the trade-offs
Before the campaign, try four upgrades on a tired 1980s office block and watch the dials answer.
Untouched, the block wastes energy and still feels cold. Pick your first upgrade.
A quick warm-up, not a campaign score — numbers are illustrative.
How the five nights teach
Built on a 7-to-60 rule: a seven-year-old can start, and a sixty-year-old never feels lectured. SAGE guidance, one-time teaching cards, Show-Me demonstrations and quiet idle coaching are already inside the game — every night adds one new idea about the energy a home quietly uses.
Find and zap the standby-power phantoms hiding around the TV.
Manage appliance habits while the bill pressure keeps rising.
Navigate by Volt’s glow and learn the hot-water lesson.
Prioritize the largest drains first — not every watt is equal.
Shift large loads into better hours instead of sacrificing comfort.
Playable alpha · Game 01
Schedule a home’s flexible energy use across a changing day. Lower cost, avoid the evening peak, use cleaner supply and keep the household comfortable.
Watch price, demand, weather and renewable output change.
Place charging, laundry, heating and other tasks on a timeline.
Balance cost, emissions proxy, comfort and grid pressure.
Replay with a new household, weather pattern or difficulty.
From the Accueco Game Lab
Run a community grid for one simulated day. Every three hours, choose whether to store, release, shift or import power to keep homes supplied, clean and comfortable.
From the Accueco Game Lab
Open a case on one simulated home. Inspect five rooms, follow the fixed clues in your notebook, then name the likely waste and choose practical improvements.
From the ACCU.eco Game Lab
Choose six practical projects for one simulated neighbourhood. Add clean power, prepare for peaks, improve daily travel and protect household comfort without overspending the plan.
From the Accueco Game Lab
Route five electric vehicles through two shared chargers across six simulated time blocks. Meet every departure while balancing price, clean supply and grid pressure.
Energy Academy
Volt and SAGE turn invisible household energy into a five-night adventure worth finishing.
Small timing choices any household can try the same evening — no new hardware required.
Free, deterministic simulations that run in any browser — no accounts, no installs, no student data.
Learning Guide
Switch to Guide view, choose Teacher or Family mode, and build a short, age-aware session without creating an account, naming a child, or sending a score anywhere.
Showing all seven lessons.
Open a lesson for its takeaway and this device’s play evidence. Guide view adds questions, with wording tuned for Teacher or Family mode.
Takeaway: Devices can still use electricity when they look asleep.
No visit is saved on this device yet.
Try asking:
Takeaway: Good energy decisions start with evidence, not guesses.
No case is saved on this device yet.
Try asking:
Takeaway: The same useful task can be cleaner and cheaper at a better time.
No day is saved on this device yet.
Try asking:
Takeaway: A power system works when supply and demand stay in balance.
No grid day is saved on this device yet.
Try asking:
Takeaway: Solar choices connect place, time, storage and community needs.
No district is saved on this device yet.
Try asking:
Takeaway: Smart charging fits transport needs around grid limits.
No depot run is saved on this device yet.
Try asking:
Takeaway: The order of building upgrades changes comfort, cost, energy and carbon.
No chapter is saved on this device yet.
Try asking:
This is a view mode, not an account role. No learner name, class list, export, or remote roster is created.
Shared player promise
No required account before the first round.
Choices alter the system in ways a player can understand.
Learning appears at the exact moment it helps the next move.
Weather, demand, constraints and goals change between runs.
Touch, mouse and keyboard are treated as first-class inputs.
Game genres and live library
Seven games are playable now — one Young Learners adventure, five simulation worlds and the five-chapter Retrofit Rally campaign.
Diagnose and transform four buildings under tight budgets, then compare comfort, energy and carbon outcomes.
All seven games are living builds. Feedback on clarity, fun, difficulty, accessibility and the learning takeaway shapes what the Game Lab builds next.
Join the playtest conversationBeyond play
Take what you learn here to Accueco.ai for building-energy tools, training, and practical planning.
Accueco.ai opens as a separate platform. Your local game progress stays here and is not added to the link.
Install & offline privacy
Only browser-local support for the optional shortcut. It does not create an account, analytics profile or gameplay upload.
accueco_pwa_hint remembers only shown, dismissed or installed for up to one year./api/ are bypassed./?src=app. That URL may appear in ordinary hosting logs; it creates no database or analytics event by itself.Clearing ACCU.eco site data removes the install preference and offline cache. Game progress uses separate local records and remains on this device.