I love The Player of Games by Iain M. Banks. The audiobook is narrated by Peter Kenny and he does such a good job with it.

Your list of audio books is very similar to how I started. I stumbled across a torrent with a bunch of Hugo winners, and those were included.

Some recommendations off the top of my head:

• Project Hail Mary (Weir).
• Snow Crash. (Stephenson).
• Cryptonomicon (Stephenson. Not sci-fi, but I highly recommend it anyway).
• The End of Eternity (Asimov. His only time travel book).

And of more recent date, the "Dungeon Crawler Carl" series as released by sound booth Theater is pretty much the gold standard in Audio book production. Seems pretty shallow at first, but the sci-fi element becomes more and more prevalent with time, and it weaves a pretty interesting story. On top of being hilarious. I cannot recommend this series enough.

In addition to those, Discworld makes for some great audio books as well.

Friendly reminder that a lot of libraries lend audio books as well.

Arthur C Clarke is an excellent author and the Rama series is one of my all-time favourites. I'd recommend anything by Philip K Dick, though honestly I think a good reference would be to pick works listed in the SF Masterworks collection, it's how I found many of my favourite SF novels.

If you fancy venturing into modern SF classics, my favourites are by Peter F Hamilton, Iain M Banks and William Gibson; though does Gibson count? He doesn't even have a middle initial 😄

Before the recs I just want to shout out libro.FM - they sell audiobooks and donate half of the profits to independent book stores.

Classic sci fi:

• The dispossessed - also the left hand of darkness (which is meant to be good buy Inhavent read)
• Foundation series
• permutation city

I think the more modern sci fi is good too so I will give you some recommendations anyway:

• Project Hail Mary - mentioned by other commenters, really good
• Children of time - first and best of a series, really good
• Expanse - series of books set in the near future, hard sci fi and a bit of space opera
• Red rising - a space opera a bit like a fantasy book in a sci fi setting
• Murderbot - series with a bit more more comed, very entertaining and easy to get into

Dungeon Crawler Carl

Hands down the best audio book series I've ever listened to. If you like video games, sci-fi, or fantasy, you will not be disappointed.

Speaking of classics, there is a Tim Curry performance of Jules Verne's Journey to the Centre of the Earth.

If you're a fan of Tim Curry (who isn't?), it's an excellent one to listen to.

I think you can get hitchhikers guide on archive.org for free (copyright free too). Great collection!

The Moon is a Harsh Mistress - Heinlein

The Mote in God's Eye - Niven / Pournelle

Solaris - Lem

Fire Upon the Deep - Vinge

Flowers for Algernon - Keyes

Diamond Age - Stephenson

Startide Rising - Brin

The Demolished Man - Bester

Have Space Suit - Will travel - Heinlein

Out of the Silent Planet - CS Lewis

Uplift War - Brin

The John Carter books are a good read/listen.

I started with A Princess of Mars

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Also, plenty of SciFi short-story collections on Librivox.org

Or search for Harry Harrison on there.

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For commercial stuff Greg Egan(hard SciFi) is great, and I remember Jeff Noon, Vurt/Pollen were also great.

I would highly recommend The Chrysalids by John Wyndham. There's an excellent audio book version available for free on Archive.org.

It's very well written classic sci-fi.

Some others that I thoroughly enjoyed:

• Starwolf - Edmond Hamilton
• The Stainless Steel Rat - Harry Harrison
• The Jameson Satellite - Neil R. Jones
• Gunner Cade - Cyril Kornbluth & Judith Merrill
• The Shockwave Rider - John Brunner
• Fahrenheit 451 - Ray Bradbury
• Phaid the Gambler - Mick Ferran
• The Dispossessed - Ursula Le'Guin

The mote in gods eye. Classic sci-fi space opera.

I enjoyed War of the Worlds in audiobook form

Yes, definitely Heinlein. The moon is a harsh mistress, and stranger in a strange land are both great.

And Philip K Dick as well, but it's a bit more surreal than what you've been listening to.