For the free Raytracing-enabled version of the classic shooter Quake 2, the update 1.8.0 has been released for Linux on Steam:

Quake II RTX v1.8.0 Update

Maintenance update that includes the fixes and features introduced in the past two years.

Highlights:

For the American Truck Simulator the huge update 1.54 is now available for Linux on Steam.

Changelog

Gameplay

Cargo System Redefined
Driving Academy Rewards

Visual

Truck Adjustment Menu Redesign
First Launch Screen Flow Refresh

Vehicles

The Update 51 "Easy Steering Wheel Setup" for the racing-simulation Revhead has been released for Linux on Steam.

Update #51
Easy Steering Wheel Setup

Date: 16. Marc. 2025
Version: 1.9.11233

Dear Revheads!

Neverwinter Nights: Enhanced Edition has received a new patch (89.8193.37-15) on Steam:

Patch Release, 89.8193.37-15

Hello again Neverwinter Nights players!

This release was developed for personal enjoyment and out of goodwill for our fellow players and creators by unpaid software engineers from the NWN community:

- clippy, Daz, Jasperre, niv, shadguy, Soren, tinygiant, virusman

For Tropico 6 the Update 23 called "Eternamente Verde" has been released for Linux on Steam.

Additionally the new (paid) DLC "Return to Nature" was released.

Description DLC:

OpenRCT2, the open source re-implementation of RollerCoaster Tycoon 2, has been released in version 0.4.20 called "Both peaks of Mount Kilimanjaro".

v0.4.20 - “Both peaks of Mount Kilimanjaro” Latest (2025-02-25)

Update:

Short after, the bugfix-update v0.4.19.1 "The Holy Hand Grenade of Antioch" has been released.

0.4.19.1 (2025-02-03)

Fix: [#23771] Weather transitions are horribly broken.

Original article:

OpenRCT2, the open source re-implementation of RollerCoaster Tycoon 2, has been released in version 0.4.19 called "Just a harmless little bunny".