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Season 1 · checking server
Persistent criminal strategy MMO
Costa NostraConquer territory.
Rule through force, influence and logistics.
Choose one of six factions and conquer 336 zones in a persistent world. Attack, negotiate, launder money and move fleets while the map stays alive 24/7.
Full game in your browser · Up to 72 hours of early protection
- Enter from the browser
- 336 zones across three regions
- Territorial PvP + PvE missions
- Starter guide with early protection
Where to play
Play your way.
Enter the full game in your browser or visit its official Steam page.
Official channel
Steam
Costa Nostra’s official Steam page, news and availability.
- Official page
- Game news
- Steam availability
How your empire grows
Territory, money and power feed each other
You start with one zone, make it produce, launder the money, build infrastructure and use that base to pressure the map. Every system moves the next.
Each zone produces, houses troops and opens routes.
Dirty money gives muscle; clean money builds power.
Improve production, defense, laundering and unlocks.
Attacks, espionage, legal pressure, extortion and transport.
The right contacts put out problems when heat rises.
336
Conquerable zones
3
Strategic regions
6
Factions
24/7
Living economy
First 10 minutes
Start with a zone, not a manual
Costa Nostra is learned by playing: choose a faction and the server assigns a protected neighborhood at random with room to grow. The Consigliere guides you without blocking the screen.
01Faction02Zone03DM04Launder05Expand
Choose your faction
Pick one of six factions with clear percentage-based modifiers. Availability depends on open starting territory.
Receive room to grow
The server assigns an eligible neighborhood with at least two open expansion routes; new players do not choose the exact point.
Launder, build and recruit
Turn DM into CM, raise buildings and recruit street, intelligence or legal staff around your plan.
Pull the strings
Run PvE missions, read the map, bribe contacts and prepare expansion once you have strength.
New-player protection can last up to 72 hours and ends if you launch a hostile action. Use that window to learn the economy and prepare defenses.
In action
The empire, in your browser
Play the full game in your browser. These are real screens from an advanced account; any published client is optional.
Territorial map
Rule three regions, zone by zone
336 conquerable zones across Europe and the Mediterranean, Japan and Latin America. Grow through local links and open air corridors between regions.
132 zonesEurope and the Mediterranean60 zonesJapan144 zonesLatin America
Start conqueringThree theaters of power
Every region has its own identity
Different landscapes, territorial networks and starting factions turn every air deployment into a strategic decision.
132 zones
Europe and the Mediterranean
The dense historic core: cities, ports and borders where four of the six factions begin.
60 zones
Japan
The Yakuza’s home territory, linked by urban corridors, coastline and technological infrastructure.
144 zones
Latin America
The largest region and the Cartel’s starting ground, stretching from Mexico and the Caribbean to the Southern Cone.
Choose your faction
Six ways to rule the night
Compare benefits, tradeoffs and signature perks exactly as they apply in game. Initial selection depends on the capacity available for each faction.
La Cosa Nostra
Tradition, paperwork and institutional power.
Accelerate production, cut company costs and lean on the legal cover of your own Judge.
Benefits and perks
- DM production +15%
- Every company: −20% CM
- Lawyer: −30% CM
- Sponsored Judge with no upkeep: blocks 1 report and recharges in 7 days
Tradeoffs
- No faction-specific numerical tradeoff
Operations against rivals
Strike, spy, extort or bury them in paperwork
Your actions leave from the zone where you stand. Vehicles and routes cut travel time; an Airport connects regions through expeditionary deployments.
Your zoneTravel and resolveRival or destination
Create accountStreetAssault · Conquest · Extortion
InformationReconnaissance · Audit · Sabotage
Legal and routesComplaint · Lobby · Transfers
Assault
Fall on an enemy zone and rob 25% of its unprotected Dirty Money.
Conquest
Seize control of a rival zone once war is declared.
Espionage
Infiltrate agents and uncover enemy troops, buildings and production.
Audit
Your accountant exposes the rival’s finances without being detected.
Sabotage
The mole stalls production, steals DM or burns one of their contacts.
Legal warfare
Lawyers and lobbyists freeze companies and open investigations.
Extortion
Collect an hourly tribute on someone else’s production.
Transfer DM
Move money between your zones with escorts and sea routes.
Playable interventions
You do more than issue the order: you can shift the outcome
Some operations and missions open optional minigames. Winning improves the action; skipping or failing leaves normal resolution to continue.
−15 min travel time
Vehicle evasion
Clear the checkpoints before the police catch the convoy and cut fifteen minutes from deployment.
+25 success points
Infiltration
Move through shadows, avoid vision cones and complete objectives to strengthen the mission’s success chance.
Minimum success guaranteed
Network intrusion
Plot a path through the network, manage exploits and evade ICE to secure at least a successful result.
Cards, duels and tournaments
La Triada brings the empire’s pressure to a 3x3 table
Prepare a 10-card deck, face PvE rivals, challenge other players and enter round-based tournaments for special prizes.
3x3Capture board10Deck cardsPvE/PvPRivals and challenges
How the table is won
Active 10-card deck
Choose cards from your collection, including duplicates if you own them. Each match deals a random hand of 5.
Capture on four sides
When you place a card, its top, right, bottom and left values compare against adjacent rival cards.
Score by control
When the board fills or a hand runs out, the player controlling more cards on the table wins.
Rewards without breaking strategy
PvE grants cards and Clean Money; PvP uses escrow so the wager stays safe until the result.
How do I start playing?
Create your account and jump straight in from your browser. If a client is published for your platform, it appears under Where to play.
Do I need to download anything?
No. The full game works in your browser, including on mobile. Any published client is optional.
Is it free? What is CN Coin for?
You can create an account and play the full game for free. CN Coin comes from special jobs or purchases and pays for optional identity and convenience services; it does not buy DM, CM, troops or victories.
How much time do I need a day?
As much as you want. The economy runs 24/7 and daily missions reward short sessions, but war rewards consistency.
Do I have to choose a faction? Is it permanent?
Yes, you choose one of six available factions at signup. You can later change it with CN Coin; that change does not bypass territory rules.
Is it PvP or PvE?
Both. Territorial war between players (PvP) and a daily board of missions against the environment (PvE).
Are Costa Nostra and Cosa Nostra the same thing?
Costa Nostra is the name of the game. Cosa Nostra is a recognizable mafia reference and also appears as a faction inside the game’s fictional universe.
Is Costa Nostra a browser mafia game?
Yes. You can manage a family, conquer territory, launder money and compete against other players directly in your browser.
Does it include organized crime and white-collar crime?
Yes. Beyond assaults and conquest, the game includes money laundering, shell companies, audits, legal pressure, bribes and institutional contacts.
Is La Triada inspired by Triple Triad?
Yes. La Triada is inspired by the 3x3 board and side-capture logic of Final Fantasy VIII’s Triple Triad, adapted to Costa Nostra with decks, PvE, PvP and its own rewards.
How does the 336-zone world work?
Europe and the Mediterranean has 132 zones, Japan 60 and Latin America 144. New players receive a random neighborhood with room to expand in their faction’s home region.
Do configurable notifications appear inside the game?
The configurable alerts are browser notifications. You choose categories and devices; the game never asks for permission on page load.
Is there a tutorial?
Yes. A step-by-step guide, the Consigliere, walks you through your first moves.
What stage is the game at?
Costa Nostra is in its first official season. This is the full game, with Europe, Japan and Latin America available from the start.
Your move
The city does not wait.Start your empire tonight.
Choose a faction, receive a base with room to grow and start pulling strings across Europe, Japan and Latin America.