Steam
Store data
- UK price
- £11.75
- US price
- $12.99
- Positive reviews
- 100%
- Total reviews
- 1
- Release date
- 26 September 2026
Activity briefingAI summary of recorded signals
Steam player data · App 4273820
Maritime Simulator
- Single-player
- Steam Achievements
- Family Sharing
Concurrent players0Most recent successful sample
Today's peak010/144 samples
Tracked peak0Highest retained daily peak
Steam rating100%1 reviews
Steam metadata
Game information
Details supplied by the Steam store
- App ID
- 4273820
- App type
- Game
- Developer
- Vector Studios ↗
- Publisher
- Vector Studios ↗
- Supported systems
- Windows
- Genres
- Casual, Simulation, Strategy
- Release date
- 26 September 2026
- Last player update
- 26 Sept · 17:40 UTC
Steam store data
System requirements
Supplied by the developer on Steam
Windows
Minimum
- OS
- Windows 10 (64-bit)
- Processor
- Intel Core i5-4570 or AMD Ryzen 3 1200
- Memory
- 8 GB RAM
- Graphics
- NVIDIA GTX 750 / AMD HD 7850 / Intel UHD 630
- DirectX
- Version 11
- Storage
- 2 GB available space
- Sound Card
- DirectX compatible
Recommended
- OS
- Windows 10 / 11 (64-bit)
- Processor
- Intel Core i5-9600K / i5-10400 or AMD Ryzen 5 3600
- Memory
- 16 GB RAM
- Graphics
- NVIDIA GTX 1650 / GTX 1060 or AMD RX 570 (4 GB VRAM)
- DirectX
- Version 11
- Storage
- 2 GB available space
- Sound Card
- DirectX compatible
Launch window
Released 26 September 2026 · Tracking from 26 September 2026
SteamWatch’s first observed day and week; tracking can begin after release. Top Sellers is Steam’s revenue ranking, not a sales estimate.
- Player peak
- 0
- Steam reviews
- 1100% positive
- Twitch peak
- Not recorded
- Price observed
- £11.75
- Top Sellers
- No appearanceNo ranked days
1 player-data day recorded in this window.
- Player peak
- 0
- Steam reviews
- 1100% positive
- Twitch peak
- Not recorded
- Price observed
- £11.75
- Top Sellers
- No appearanceNo ranked days
1 player-data day recorded in this window.
Peak 0Average 0Latest 0
24-hour and 7-day views use hourly peaks from ten-minute samples. Longer views use retained daily peaks. Up to 24 recent event markers are shown per layer.
Twitch
Twitch stats
Awaiting the first Twitch sample.
Long-term history
Monthly players breakdown
Calculated from SteamWatch samples
| Month | Peak | Gain | % gain | Average | Avg % gain |
|---|---|---|---|---|---|
| Last 30 days | 0 | — | — | 0 | — |
| September 2026 | 0 | — | — | 0 | — |
Store price Regular price
Daily regional sweep
Regional prices
2 regions checked
| Region | Currency | Regular | Current | Discount | Historical low | Last change |
|---|---|---|---|---|---|---|
| United KingdomGBP · GB | GBP | £11.75 | £11.75 | 0% | £11.75 | No change recorded |
| United StatesUSD · US | USD | $12.99 | $12.99 | 0% | $12.99 | No change recorded |
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| Latin America (regional USD)USD_LATAM · AR | — | — | Unavailable | — | — | No change recorded |
| Middle East & North Africa (regional USD)USD_MENA · EG | — | — | Unavailable | — | — | No change recorded |
| South Asia (regional USD)USD_SASIA · PK | — | — | Unavailable | — | — | No change recorded |
Positive rating100.0%
Positive reviews1
Negative reviews0
Review history is not available for this range yet.
Recent views use Steam's daily review activity. Longer views use weekly totals, retained by SteamWatch.
About this game
Description
Supplied by the Steam store
Maritime Sim is a realistic vessel traffic simulation focused on the management, monitoring and coordination of maritime traffic in busy waterways. Maritime Sim focuses, primarily within its first version of the game, on the River Thames in London and the Thames Barrier. This is a very busy stretch of the Thames with a varied amount of maritime traffic.
Take on the role of a Vessel Traffic Service (VTS) operator, overseeing commercial shipping, passenger vessels and support craft as they navigate the complex tidal Thames river. Using real-world inspired procedures, traffic rules and navigation logic, you’ll assign routes, manage traffic flow, respond to developing situations and prevent incidents before they happen. Boats will come from either the ocean (North Sea/Dover Channel) or from Central London/the UK River network and how they transit through the Thames Barrier is up to you to decide!
Built with authenticity in mind, Maritime Sim emphasises situational awareness, decision-making and operational control rather than arcade handling. Every vessel movement matters and poor planning can quickly escalate into congestion, groundings or collisions.
Whether coordinating traffic through narrow channels, managing peak-hour congestion or responding to unexpected events, Maritime Sim delivers a grounded, systems-driven maritime experience designed for players who want realism, responsibility and control.
KEY GAME FEATURES:
Control the Waterway. Command the Traffic.
Serious Maritime Traffic Simulation Where Every Vessel Movement Matters.
Traffic Control for the Modern Waterway - control ships that are either Ocean-bound or coming in from the Ocean.
Realistic Vessel Traffic Service (VTS)-style gameplay.
Manage commercial, passenger, and support vessels including pilot tugs and emergency service vessels such as HM Coastguard vessels, RNLI Lifeboats and policing vessels.
Dynamic traffic flow throughout the tidal Thames river.
Route assignment, conflict prevention and flow control.
Systems-driven simulation focused on decision-making.
Designed for immersive realism, not arcade gameplay.
Steam gallery
Screenshots
7 available
Steam has not listed DLC or a demo for this game yet.
Steam global stats
Achievements
6 achievements
| # | ||
|---|---|---|
| 01 | Clocked In For DutyStarted a shift as a VTS operator. | 8.5% |
| 02 | Right of PassageAssigned a barrier span to a vessel. | 5.7% |
| 03 | All ClearResolved an emergency and sent responders back to base. | 2.8% |
| 04 | Full Steam AheadSet the simulation clock to 20× speed. | 2.8% |
| 05 | Red SignalClosed a Thames Barrier span. | 2.8% |
| 06 | Rules of the River | 2.8% |
Saved from Steam
Patches
4 tracked updates
Maritime Simulator Version 1.0 — Leaving Early Access!
Maritime Simulator Version 1.0 — Leaving Early Access! Version 1 brings new tools for managing busy shifts, a harder traffic mode, a refreshed interface, and fixes to barrier and pilot operations. We also had to issue a Version 1.0.1 hotfix in this round of updates, details are included below. New features since Update 0.3Vessel Traffic Board: View vessels in a sortable list with their direction, assigned span, speed, live ETA, and status. Select a vessel to centre it on the map. Traffic board search and filters: Search the board or show vessels awaiting a span, needing a pilot, stopped, or involved in an incident. VTS Event Log: Follow a timeline of radio calls, span changes, stops, pilot activity, warnings, and emergencies. Pilot Dispatch Board: Track pilot availability, assignments, boarding progress, and return trips. Three pilots are available, making dispatch decisions more impo...
Read full update on Steam ↗Maritime Simulator Update 0.3 — NEW Features - Barrier Operations & Bug Fixes
Update 0.3 is liveThese new features for Maritime Simulator have been planned for a while, and we have been busy implementing and testing these exciting new changes! This update adds new decisions for VTS operators and fixes several vessel-handling problems reported during Early Access. Thank you for helping us track them down. New featuresBarrier operations: You can now close and reopen Thames Barrier spans and see their current signals. Approaching traffic must be held or assigned an available span. Collision warnings: The game now checks moving traffic for developing conflicts and shows the vessels involved, with a radio warning. Normal queues at the barrier noticeboards are excluded. Uber Ferry departure calls: Ferries ready to depart request clearance by radio and flash orange and white on the map. Starting their trip plays the VTS clearance response. Steam achievements: Five new...
Read full update on Steam ↗Maritime Simulator: New Features Soon & Early Access Update 0.2 Is Live Now
Update 0.2 is live Version 0.2 is now available to all Maritime Simulator players on Steam. This update focuses on making Thames Barrier operations and vessel traffic more reliable. What’s improvedTankers and pilot tugs now stop more reliably for pilot transfers, including at 20× simulation speed. Pilot boarding waits until both vessels have stopped. Tankers can then continue through the Thames Barrier without becoming stuck behind their pilot tug. Fixed duplicate vessel scheduling. Emergency responders take a more direct route to casualties, and their vessel panels no longer offer controls that do not apply to them. Tidal broadcasts now have the radio channel to themselves. Vessel calls wait until the broadcast finishes instead of speaking over it. Fixed the Clocked In For Duty Steam achievement so it unlocks when you start a shift. Resuming after a pause restores your previously sel...
Read full update on Steam ↗Early Access Update 0.2
Version 0.2 is now live on the default Steam branch. This update addresses vessel handling around the Thames Barrier, emergency response, radio traffic and Steam achievements. Vessel traffic and pilot transfers Fixed duplicate vessel scheduling that could cause the same vessel to be selected more than once. Improved stopping-point detection at 20× speed so tankers and pilot tugs stop at their intended positions for a pilot transfer. Pilot boarding now begins only after both the tanker and pilot tug have stopped. Fixed a tanker becoming stuck behind its assigned pilot tug. After the transfer, it can continue through the Thames Barrier. Verified that a normal vessel assigned a barrier span can cross at 20× speed. Emergency response Emergency responders now take a more direct route to a casualty instead of travelling almost an entire route loop to reach a nearby vessel. Fixed normal vess...
Read full update on Steam ↗
Game activity
Recent changes
Steam events and SteamWatch observations
- SteamWatchPlayer data
New tracked player peak
0 concurrent players — the highest daily peak recorded at that point.
- SteamPatch
Maritime Simulator Version 1.0 — Leaving Early Access! ↗
Maritime Simulator Version 1.0 — Leaving Early Access! Version 1 brings new tools for managing busy shifts, a harder traffic mode, a refreshed interface, and fixes to barrier and pilot operations. We also had to issue…
- SteamRelease
Released on Steam
Release date supplied by the Steam store.
- SteamPatch
Maritime Simulator Update 0.3 — NEW Features - Barrier Operations & Bug Fixes ↗
Update 0.3 is liveThese new features for Maritime Simulator have been planned for a while, and we have been busy implementing and testing these exciting new changes! This update adds new decisions for VTS operators an…
- SteamPatch
Maritime Simulator: New Features Soon & Early Access Update 0.2 Is Live Now ↗
Update 0.2 is live Version 0.2 is now available to all Maritime Simulator players on Steam. This update focuses on making Thames Barrier operations and vessel traffic more reliable. What’s improvedTankers and pilot tu…
- SteamPatch
Early Access Update 0.2 ↗
Version 0.2 is now live on the default Steam branch. This update addresses vessel handling around the Thames Barrier, emergency response, radio traffic and Steam achievements. Vessel traffic and pilot transfers Fixed…