Precision Railway Overlays for Railroader
The definitive map enhancement suite. Featuring topology-aware Mainline detection, FRA speed class tracking, gradient analysis, and live station passenger intelligence.

Five High-Fidelity Visualization Modes
Switch overlays instantly from the map toolbar to inspect operational hierarchy, track conditions, FRA safety classes, or steep mountain grades.
Functional Routes Mode
Visualizes the track network by operational purpose using our multi-tier detection engine. Traces continuous through-mainline corridors across dark territory, separates passing sidings, isolates MOW and industrial areas, and highlights passenger stations.
Key Operational Advantage
Active Color LegendAnalytical SDF Shader
Engineered for Deep Railway Simulation
Every feature is natively integrated into Railroader's track graph, timetable routing, and maintenance of way subsystems without external dependencies.
Multi-Tier Mainline Engine
Topology-Aware Route Classification
Eliminates naive CTC shortcuts and dark territory gaps using Timetable corridor pathfinding with switch-turn penalties (+50m). Automatically separates passing loops from through-tangents.
- •Timetable Branch 'Main' station-to-station corridor tracing
- •Seamless classification across dark territory (Sylva–Whittier, Bryson–Andrews)
- •Automated siding chord and passing loop exclusion
- •Custom and modded map fallback traversal
Analytical SDF Quad Renderer
Razor-Sharp Zoom Down to 59m
Transpiled signed distance field shader pipeline with white atlas clearing and 0.5-texel UV insets. Eliminates low-zoom ghost dotted artifacts and seam tearing across all zoom levels.
- •No low-zoom ghost artifacts or dotted parallel lines
- •0.5-texel UV inset clamping with 1.0m safety margin
- •Opaque alpha channel quad geometry for performance
- •Logarithmic zoom readout from 0% (11.7km) to 100% (59m)
Passenger & Station Intelligence
Directional Passenger Tooltips & Depot Interaction
Custom vector station markers with live directional passenger counts ('Up: 12 towards Andrews', 'Down: 8 towards Sylva'). 1-click on depot markers opens native Station Agent windows.
- •Custom 128x128 gold-rimmed bundled depot marker asset
- •Live directional passenger breakdown and destination counts
- •1-click depot interaction opening Station Agent window
- •Consistent upper-left HUD positioning without transient cursor drift
Rolling Stock HOPA Alerts
Lateral Visual Alert Badges
Displays real-time equipment warning badges along the right lateral flank of cars: Hotbox (H), Low Journal Oil (O), Handbrake Applied (P), and Air Leak (A). Screen-upright rotation guarantees readability.
- •Lateral flank anchoring eliminating overlap between coupled cars
- •Screen-upright rotation (always readable regardless of track curve)
- •Independent toggle controls in settings for H, O, P, and A
- •Handbrake (P) separated from critical failure warning counts
Turntables & Road Crossings
Active Facilities Tracking
Visualizes active turntables with dynamic alignment heading, bridge raycasting, and 31+ clustered road crossing markers across the entire route network.
- •Live turntable bridge orientation synchronized with map
- •Road crossing markers clustered from 380+ track points
- •Floating-origin and world shift compensation
- •Configurable marker scale and visibility toggles
Precision Switch Telemetry
Apex-Aligned Junction Chevrons
Junction indicator chevrons anchored directly to track apex geometry rather than ground stand offsets, providing instant visual confirmation of switch alignments across all yards.
- •Centerline apex anchoring aligned with point rail lead
- •Dynamic switch alignment colors (Green straight, Yellow diverging)
- •Clear visual indication for spring switches and CTC interlockings
- •Instant clickable interaction for remote switch throwing
Install in Under 60 Seconds
No complex mod managers required. Built as a standard native C# mod with clean Harmony injection.
Download the Mod Archive
Grab the latest reaper-mapenhancer-2.x.x.zip release package from our official downloads page.
Extract to Railroader Mods
Extract the zip contents directly into your Railroader Mods or ModDev directory.
Launch & Enjoy
Start Railroader. Map Enhancer initializes automatically via Harmony and attaches the 'ME' map toolbar button.
More Tools, Mods & Community
Expand your Railroader dispatching and operational toolkit with interactive web tools, additional mod releases, and active community discussion.
Railroader Interactive Map
Explore the complete topographic railway network in your browser. Real-time track lines, stations, industries, switch points, and operational route planning for your railroad.
Reaper8f Mod Collection
Discover all official Railroader mods, gameplay enhancements, rolling stock adaptations, and auxiliary utilities created and maintained by Reaper8f on Nexus Mods.
Refizar Discord Server
Join our Discord community to participate in beta release feedback, receive real-time mod update alerts, get installation support, and share railroading tips.
Map Enhancer v2.0.14 — Mainline Engine & EULA Update
What's Changed - Multi-Tier Mainline Detection Engine (Timetable, CTC, Siding Isolation) - Proprietary End-User License Agreement & Redistribution Con...