The Board Action Kards Features Play Now
Nationnaire
Free · Multiplayer · Browser

Build a property empire with friends.

A 3D board game for 2–4 players. Host a room in one click, share a 4-letter code, and trade your way to a monopoly over dinner. No accounts. No downloads. No ads.

29 Action Kards
4 AI Personalities
7 Languages
Nationnaire 3D game board
Nationnaire Board Top View
Signature Board

Nationnaire

Built Different

Our signature board goes beyond the classic formula. Harbours, cranes, collectible cards, and a Wheel of Fortune add layers of strategy that reward planning and timing.

Harbours & Cranes — dock upgrades that boost airport multipliers
29 Action Kards — collectible abilities across 3 rarity tiers
Wheel of Fortune — 16 outcomes including free properties and jail
Airport Travel — teleport between owned airports
Monaco — a single-property group with unique rent rules
Classic Board Top View

Classic Mode

The original 40-space layout with 8 color groups and traditional rules. The foundation every player knows — available for purists who prefer the original.

Nationnaire Exclusive

Action Kards

Collect powerful cards with unique abilities. Draft your starting hand, earn more by passing GO, and play them at the perfect moment to turn the tide.

Windfall
Windfall
Bronze
Sabotage
Sabotage
Bronze
Pickpocket
Pickpocket
Silver
Royal Grant
Royal Grant
Gold
Diplomat's Immunity
Immunity
Gold
Action Kards in gameplay Cards in your hand during a live game
Draft
Pick your starting cards from a rarity-weighted pool
Collect
Earn new cards each time you pass GO
Play
Steal, shield, build, or demolish at the perfect moment
29
Unique Cards
3
Rarity Tiers
12
Effect Types

What You Get

Built for Players

Everything you need for a great board game session, right in your browser.

3D Game Board Close-up

Visuals

Stunning 3D Graphics

Three.js Real-time Shadows Particle VFX

Three.js rendered board on a handcrafted Art Deco table. Real-time shadows, animated dice with physics simulation, particle effects, and smooth token movement. Feels like a real board game night.

Multiplayer HUD

Multiplayer

Real-Time With Friends

Room Codes Private Games Reconnect

Create a room, share a 4-letter code, and play instantly. 2–4 players with seamless live sync. Supports private rooms, spectators, and automatic reconnection if you drop.

Solo or Fill Seats

Evolved AI Opponents

Genetically evolved with 63 tuned parameters. They trade, build, and play Action Kards strategically.

🤖
Botsworth
The Mogul
Aggressive buyer. Builds fast, bids high, dominates the board.
🤖
Circuit
The Calculator
Defensive and precise. Optimizes every dollar, never overpays.
🤖
Gearhart
The Disruptor
Chaos agent. Sabotages opponents, plays unpredictable cards.
🤖
Tinker
The Dealer
Master negotiator. Proposes trades others can't refuse.
63Parameters
4Personalities
75Generations Evolved
Game Settings

Your Rules

Deep Customization

20+ Settings House Rules Per-Room

20+ game settings to match your house rules. Free parking pot, auction on decline, double GO salary, jail bail amounts, build-on-landing, starting money, and more. Every game plays differently.

Player Statistics

Progression

Track Your Legacy

Game History Property Medals Win Tracking

Every game is recorded. Track wins, total earnings, rent collected, and buildings built. Top-earning properties earn gold medals. Review your full game history with detailed breakdowns.

EnglishEnglish
DeutschDeutsch
EspañolEspañol
中文中文
PolskiPolski
FrançaisFrançais
PortuguêsPortuguês

Global

7 Languages

Full Translation Switch Anytime Cards & Board

English, German, Spanish, Chinese, Polish, French, and Portuguese. Switch anytime from the lobby or in-game. All card names, board tiles, and UI fully translated.

The Community

Played by People Who Love Board Games

Nationnaire is built by one person, for people who still want to play with their friends in an age of infinite scroll.

Join the Discord

Find players. Share strategy. Shape the game.

Weekly tournament nights, bug reports that actually get fixed, and a direct line to the developer. House rules welcome.

Join Discord

Finally a Monopoly-style game that doesn't shove ads in your face every other turn. The cards add just enough chaos.

MK
Marie K.
Weekly game night host

Played four games with my cousin in Berlin from my couch in Toronto. Looks gorgeous, runs smooth, Circuit bot beat us twice.

AR
Anders R.
Beta tester since v0.3

House-rule settings are a dream. We play “free parking pot + auction on decline” and every game feels new.

SP
Sofia P.
Plays with 3 siblings weekly

Our Promise to You

No AdsEver. Not even one.
No TrackingNo analytics pixels.
No PaywallEvery feature, free.
Made by OneBuilt solo, with love.

Ready?

Start Playing Now

Free. No ads. No tracking. Just a beautiful board game.