Run a profitable charging network in a world where everything breaks.

A tycoon game and full-stack EV charging network simulator. Place chargers, balance a three-phase power grid, dispatch technicians, triage faults, negotiate demand charges, and keep drivers happy across multiple sites. Under the hood the simulation speaks real protocols -- OCPP 1.6J, OCPI 2.3.0, and OpenADR 3.0 -- so every session produces realistic datasets you can export and analyze.

Built with Bevy 0.17+ in Rust. Runs native (macOS, Windows, Linux) and in the browser via WASM.

Play it as a game. Kilowatt Tycoon is a management sim where depth comes from interacting systems, not tutorials. Chargers fault, transformers overheat, cables get stolen, drivers lose patience, and weather swings demand -- all at the same time. You are constantly spinning plates, triaging problems, and making imperfect decisions under pressure.

Explore the EV charging ecosystem. The game models what it actually takes to operate a Charging Point Operator (CPO): grid capacity limits in kVA, transformer thermal derating, phase-load balancing, TOU and demand-charge billing, four pricing strategies, solar and battery storage dispatch, and the operational chaos of support tickets, remote reboots, and technician routing. Protocol messages (OCPP boot notifications, OCPI charge detail records, OpenADR demand-response events) mirror the flows you would see in a production charging network.

Generate datasets. Every charger streams OCPP 1.6J messages to per-charger NDJSON logs or a WebSocket endpoint. OCPI 2.3.0 locations, sessions, CDRs, and tariffs are emitted alongside OpenADR 3.0 DER telemetry and event signals. Export to CSV from the in-game protocol feed, or pipe the logs into the bundled DuckDB analytics pipeline.

Start by installing the Rust toolchain locally if you don't already have it.

One way is to use the standalone installers

Requirements: Rust 1.85+ (2024 edition)

# Run the game
cargo run

# Run in release mode (faster)
cargo run --release

# Run tests
cargo test

# Updated/generate assets
python3 tools/build_assets.py

Test the game locally in the browser:

trunk serve

Grab a copy of Tiled and install it locally.

Open the tiled project in the root of the /asset directory, or create a new one as you see fit!

Four sites with escalating difficulty -- from a free parking lot in a US suburb to a scooter charging hub in Ho Chi Minh City. See the Levels Overview for screenshots and summaries of each.

src/
├── components/     # ECS components (Charger, Driver, Ticket, etc.)
├── systems/        # Game logic (charging, movement, power dispatch)
├── resources/      # Global state (GameClock, MultiSiteManager)
├── ui/             # User interface
└── states/         # Game state machine

assets/             # Sprites, icons, tiles (SVG + PNG)
spec/               # Design documentation

Anyone and everyone is welcome to contribute! Please review the CONTRIBUTING.md document for more details. The best way to get started is to find an open issue, and then start hacking on implementing it. Letting other folks know that you are working on it, and sharing progress is a great approach. Open pull requests early and often, and please use GitHub's draft pull request feature.

GNU General Public License version 3 (GPL-3.0-only)