# FEX-Emu

23 Hacker News commenters recommended FEX-Emu and 5 criticized it, November 2025 to November 2026. It was recommended in 10 of 13 months. It meets the Hacker Approved badge rule.

**Verdict:** Free open-source emulator that runs x86 Linux apps and Windows games on ARM devices, with strong performance. Critics say it is hard to get running and has bugs on some hardware.

## Why people recommend it

- Impressive performance on ARM (4 comments): "greatly increasing the performance of most recent Windows games on ARM Linux" ([source](https://news.ycombinator.com/item?id=46138342)) "Incredible job keeping performance high." ([source](https://news.ycombinator.com/item?id=46062954)) "Really impressed with the performance." ([source](https://news.ycombinator.com/item?id=46000237))
- Runs x86 apps and games on ARM (4 comments): "It's not how fast this stuff runs that impresses me, it's that it runs at all." ([source](https://news.ycombinator.com/item?id=46560215)) "broadly useful for getting legacy x86 stuff running on ARM systems" ([source](https://news.ycombinator.com/item?id=47279457)) "FEX lets you run Steam games on phone hardware." ([source](https://news.ycombinator.com/item?id=50052076))
- Valve-sponsored open source project (3 comments): "their contributions to Wine and Fex will enable other Linux gaming platforms" ([source](https://news.ycombinator.com/item?id=48890613)) "their open source initiatives with proton and fex should not be discounted" ([source](https://news.ycombinator.com/item?id=49706775)) "Valve-sponsored FEX project" ([source](https://news.ycombinator.com/item?id=45908257))
- Better than box86 in use (2 comments): "nowadays FEX works better than box86 in my experience" ([source](https://news.ycombinator.com/item?id=45913313)) "much slower than Box64 or FEX" ([source](https://news.ycombinator.com/item?id=48125496))

## What people warn about

- Project rejects AI, prompting forks (2 comments): "Unfortunately, FEX is no llm, so I'll have to fork." ([source](https://news.ycombinator.com/item?id=49726707)) "FEX is anti-AI, so I will have to fork." ([source](https://news.ycombinator.com/item?id=49754303))
- Bugs on some hardware or setups (2 comments): "I've tested it on an Ampere workstation, and was trying it on a Pi, but it seems with Trixie, there may be some bugs" ([source](https://news.ycombinator.com/item?id=45999900)) "upstream FEX doesn't play very nice with Apple Silicon in the first place" ([source](https://news.ycombinator.com/item?id=46138326))

## Alternatives hackers recommend

- [v86](https://hackerapproved.com/p/v86.md): 9 recommend
- [Box64](https://hackerapproved.com/p/box64.md): 7 recommend

## Cite as

Hacker Approved, "FEX-Emu", https://hackerapproved.com/p/fex/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).