I caught wind of a fresh Steam Deck-friendly RPG dropping into the Party-Based RPG Fest, and I had to try it myself. Under a Desert Sun is now available with a free demo on Steam, and it runs surprisingly well on the Deck, even with local co-op support. Let’s dive into what makes this one worth checking out.
What is Under a Desert Sun?
This indie RPG blends tactical combat with a gritty, desert-themed narrative. You lead a group of mercenaries through a harsh world where every decision impacts your survival. The game leans into resource management, party customization, and turn-based strategy, making it a solid fit for fans of deeper RPGs on the go.
The demo gives you a taste of the early game, letting you explore a chunk of the desert world, recruit companions, and test the combat mechanics. And the best part? It’s free.
How to Access the Demo on Steam Deck
- Open the Steam client on your Deck.
- Search for Under a Desert Sun.
- Click the “Play Demo” button.
- Download and launch.
No extra setup needed. It’s a straightforward process. The game is Proton-compatible, and from what I tested, it runs smoothly without any performance hiccups. Frame rate stays solid, and the UI scales well to the Deck’s screen size.
Local Co-op on Steam Deck: Does It Work?
Yes, and it’s a blast. You can connect a second controller via Bluetooth or USB and play with a friend sitting next to you. The game handles split-screen or side-by-side play, and the Deck handles it without breaking a sweat.
It’s not often we get local co-op RPGs on the Deck, so this is a nice surprise. Perfect for a quick session on the couch or in bed while you and a buddy tackle a dungeon together.
Performance on Steam Deck
I tested the demo on my OLED model, and here’s how it held up:
- Frame Rate: Consistent 45–60 FPS
- Resolution: Native 1280×800
- Controls: Fully mapped, with intuitive UI
- Battery Life: Around 3–4 hours during gameplay
That’s impressive for a game that leans into tactical depth and visual detail. No crashes, no stuttering, and the Deck didn’t overheat, even after 45 minutes of continuous play.

Why This Matters for Steam Deck Owners
Valve’s Party-Based RPG Fest is a great opportunity to discover hidden gems, and Under a Desert Sun fits the bill. It’s the kind of game that makes you appreciate the Deck’s portability and Linux compatibility. Plus, local co-op support is still rare enough to be a selling point.
If you’re into turn-based RPGs and want something that feels meaty without being overwhelming, the demo is definitely worth your time especially if you’ve got a friend to play with.