Skyline Sim is targeting Early Access in April 2027. The plan focuses on four connected areas: more believable competitors and competitive intelligence, real codeshare partnerships, airport congestion and passenger care, and tools for managing a larger airline. The current UI will continue to improve alongside these systems. October focuses on reliability and feedback; November and December on competitors, intelligence and management tools; December and January on codeshare; January and February on congestion, recovery and delegation. March is reserved for campaign testing, balance and stabilization, followed by release candidates and an April launch target. These are planning windows, with the final release date depending on testing. Early Access starts with scheduled passenger airlines; dedicated cargo and charter businesses are planned for development during Early Access. Save resets remain possible before launch. After launch, the priority is to migrate saves and preserve ongoing campaigns.
Quality of life
Campaign Reliability and Long-Term Performance
Ongoing, with a release gate in March 2027
Keep an airline campaign dependable as it grows. This work covers saving and loading, aircraft purchases, passenger booking continuity, financial settlement and stable competitor operations. Larger networks and long time advances will be checked across day, month, season and year boundaries, including responsiveness and memory use. Reliability work continues throughout the roadmap, alongside focused tests and production measurements. Release candidates must also be checked as native Steam builds on Windows and macOS, including the relevant Steam Cloud and achievement setup.
Feature
Airport Congestion & Chronic Delay
January to February 2027
Busy airports should create planning pressure that depends on the airport, time of day and historical era. This work will develop chronic congestion around the existing capacity and queue systems, with stronger peak-period pressure and quieter off-peak periods. Congestion will be distinguished from weather, crew and reactionary delays, with a clear breakdown of delay minutes and relevant OCC information. The aim is to give you useful choices about timing and operational buffers while preserving consistent consequences for your airline and its competitors. Calibration and testing will check that congestion is not charged twice through overlapping delay systems.
Planned 6
What is coming next
Feature
Rival Airlines and Competitive Intelligence
November to December 2026
Make competing airlines more believable and their actions easier to understand. The existing AI will be refined around sustainable network and fleet decisions, meaningful reactions to competition and clearer explanations of important changes. A playable competitive-intelligence system will let you commission research on selected rivals or markets, pay for information and receive reports after time passes in the simulation. Reports will distinguish observations from analysis and show their age and confidence, helping you judge expansion pressure, route strategy and potential codeshare partners. This develops the current intelligence tools into decisions about what to investigate and when.
Feature
Codeshare Partnerships and Connecting Traffic
December 2026 to January 2027
Choose an airline partner, negotiate an agreement and sell connecting journeys that use real flights from both networks. AI partners will evaluate the proposed relationship against their own network and interests. The first version focuses on bilateral agreements, journeys with one connection, existing cabins, defined revenue sharing and clear passenger responsibilities. Partner sales must consume actual available seats, and the resulting traffic and earnings must be visible in your airline's results. Schedule changes, cancellations and expired agreements must preserve already-sold obligations and settle refunds and revenue correctly.
Feature
Passenger Recovery and Costed Care
January to February 2027
Turn disruptions into decisions about passengers, recovery options and real costs. Compare feasible recovery choices, use your own network or an eligible codeshare partner, and follow the outcome of the affected journey. Meals, hotels and compensation will have explicit eligibility rules and financial consequences, with the supported regions and historical periods defined for the first version. Care and recovery costs will remain traceable in the airline's accounts. Managers can handle permitted cases within your policies, while exceptions come back to you. Repeated processing or loading a save must not charge the same obligation twice.
Feature
Large-Airline Management and Delegation
November 2026 to February 2027
Run a growing airline through selected groups, policies and exceptions. Bulk actions will reduce repeated work across aircraft and services, while local Auto Schedule will focus on a chosen base, pool or part of the network with a preview before changes are applied. Wider delegation will let managers act within defined responsibilities, budgets and limits, starting with disruption handling and workforce or reserve planning. Their actions will have a reason and a cost history, with important exceptions escalated to you. Existing automation remains the foundation, and manual decisions and locked plans must be respected.
Quality of life
Early Access Testing and Release Candidates
March testing, April 2027 launch target
Bring the four development tracks together in complete airline campaigns. The target is to finish the new gameplay loops by the end of February, then use March for longer campaigns, economic balance, save migration checks, large-network performance and player testing. Late March and April are planned for release candidates, native Steam verification, final store information and launch preparation. April 2027 is the Early Access target, with the final day announced after readiness checks. Regular development updates will explain progress and any changes to the plan.
Feature
Next-Generation Technology & Platform Upgrade
After Early access
We are rebuilding the foundations of Skyline Sim to support a faster, deeper and more scalable simulation while keeping the interface and experience players already know. Core game systems are being moved to our Rust simulation architecture, alongside a major rebuild of the globe and world rendering systems. This work is also laying the foundation for modern graphics backends, including DirectX 12 on Windows, Metal on macOS and Vulkan on Linux, with native Linux support as a target. The upgrade will roll out progressively rather than as a single update, with individual systems moving to the new architecture as they are completed and validated.
Development progress15%
Released 1
Available in the game
Feature
Livery Editor
No ETA
We are working all the time on enhancing livery editor.
Plans evolve as we build.
Timeframes are targets, not promises. Testing and community feedback may change the order or timing.