Because you cannot buy a trailer

Euro Truck Simulator 2 v1.25.2.5 is a legacy version of the popular truck simulation game released in September 2016. This specific version and the "44 DLC" bundle are often associated with older "all-in-one" repack collections or specific community-archived versions.  Key Version Features (v1.25.x) 

Update 1.25 introduced several major quality-of-life improvements and mechanical overhauls: 

Hungary Expansion: Added the cities of Pécs and Szeged to the Going East! expansion.

Mod Manager: A dedicated tool for easier previewing and organization of third-party mods.

Steering Wheel Options: Introduced steering wheels as a separate model, allowing for default or exclusive versions for each truck.

Trip Info Controls: Driver-controlled computer info, allowing players to track distance and consumption more accurately.

Interior Zoom: Added the ability to bind a key to zoom the interior camera for better visibility of the dashboard.

Transmission Tweaks: Manual control for automatic transmissions, including shifting hints.  Included DLC Content 

While modern versions now have over 80 pieces of extra content, the 44 DLC bundle from late 2016 typically represents a "complete" collection for that specific era. Notable content from that period included: 

Map Expansions: Going East! and Scandinavia. (Note: Vive la France! was the next major release shortly after this version).

Customization Packs: Cabin Accessories, Wheel Tuning Pack, and various national paint jobs.

Trailer Packs: Schwarzmüller Trailer Pack and various cargo-specific additions.  Technical Context  FAQ - ProMods Blog

Rain lashed against the windshield of the Scania R-series as Elias pulled out of a dimly lit rest stop near Luxembourg. The dashboard glowed with a soft, amber light, displaying the digital readout of his current version: 1.25.25. It was a reliable build, a steady companion for a man who spent his nights traversing the virtual veins of Europe. Behind him sat twenty tons of high-voltage transformers, a heavy haul destined for a construction site in the heart of Berlin.

He checked his mirrors. The spray from the tires blurred the headlights of a trailing AI car, but Elias felt a sense of total control. With forty-four DLCs integrated into his rig, the world felt vast and impossibly detailed. He wasn't just driving through a map; he was moving through a meticulously crafted continent. To his left, the French countryside rolled by in a hazy green blur; to his right, the rising sun began to catch the chrome of his bull bar as he crossed the German border.

The radio played a low, rhythmic jazz station from a live feed in Prague. Elias shifted through the gears, the satisfying click of his shifter echoing in the quiet cabin. Every expansion pack added a new layer to the journey. One moment he was navigating the tight, cobblestone streets of a medieval Polish village, and the next he was roaring down the wide, unrestricted lanes of the Autobahn. The variety kept the fatigue at bay. He had seen the fjords of Scandinavia and the sun-drenched olive groves of Italy, all from this very seat.

As he neared the outskirts of Berlin, the GPS chirped, directing him toward a narrow industrial bypass. This was the part of the job that required precision. He toggled his beacons, the orange light reflecting off the rain-slicked asphalt. With a careful swing of the wheel, he guided the oversized trailer through a tight gate, the tires missing the curb by mere inches.

He parked the rig, set the air brake with a heavy hiss, and watched the experience points tally up on his screen. Another perfect delivery. He leaned back, the hum of the engine still vibrating in his mind. The road was endless, the cargo was heavy, and with the entire map open before him, Elias knew he wouldn't be getting any sleep tonight. There was a shipment of medical supplies waiting in Warsaw, and the sunrise was too beautiful to waste. technical troubleshooting for this specific version? recommended route to see the best scenery in those 44 DLCs? available in that build? Tell me what you're interested in, and we can map out your next move.

Because this version is static, it has a mature modding ecosystem. Here are the top mods that work flawlessly with v1.25.25 incl 44 DLC:

| Mod Name | Category | Description | | :--- | :--- | :--- | | ProMods 2.12 | Map | Adds Iceland, Faroe Islands, and rebuilds default cities. Requires DLC Going East + Scandinavia. | | RusMap 1.6.3 | Map | Connects Russia and Belarus to ProMods. | | Jazzycat’s Traffic Pack | AI | Adds 500+ real cars to the roads. | | Sound Fixes Pack v17.1 | Audio | Overhauls engine, tire, and wind noise. | | Realistic Physics Mod | Gameplay | Adds cabin roll and suspension travel. |

Warning: Do not use mods designed for v1.27 or higher. They will crash the game.

You might wonder: Why play an older version when ETS2 is constantly updated? Here are four compelling reasons: