Elder scrolls games (Morrowind, oblivion, Skyrim) are classic examples and games that came after they inspired like cyberpunk.

I haven't seen Sable suggested, but it's a very pleasant indie game with a lot of BotW in its DNA. It's not as large and content filled as some of these suggestions but it does have a great sense of style and is more tonally similar to Zelda.

Much smaller scale, but Smushi Come Home kinda gave me BOTW vibes

Horizon zero dawn is live action breath of the wild

Immortals: Fenyx Rising

Crazy that I didn't see anyone else mention this one, but you should check out Cloudheim. It has a free demo on steam.

V Rising. It's basically goth Terraria. You're playing as a vampire who just came out of a thousand-year hibernation, and your whole goal is to find and kill Dracula. You start by bullying skeletons with your bare hands to harvest their bones, and go all the way to building an enormous automated castle that can process thousands of units of raw materials.

Genshin is the only one I know of. Its monetisation is predatory, but it's a huge open world action-RPG with tons of discoverable chests and environmental puzzles. Also it's very f2p friendly if you're not susceptible to hype and FOMO - I've been playing for 4+ years with most areas 100% explored (and 70+ characters unlocked) without ever spending a pence.

Crimson desert. You'll never finish it.

Hytale is really good, but it's still in early access and the overarching objective isn't there yet. Still keep an eye on it

Enshrouded

Skyrim

Admittedly it's a bit older

Lil' Gator Game

It's a very casual take on BOTW - basically exploring and traversal with no consequences. Enemies are cardboard.

It has some nods and jokes referencing TLOZ. I found it charming as hell and played it to 100%. I'm looking forward to playing the expansion.

The oft forgotten ~~Gods and Monsters~~ Immortals Fenyx Rising is a shockingly good BOTW-like. Booted it up the other day because I noticed I had it from when they gave it away for free some time ago, and it was such a pleasant surprise. In some ways (combat, traversal, dungeon design, writing) it’s even better than Zelda. Do yourself a favor though and remove most of the HUD and puzzle hints via the ingame options and pirate it if you can so you don’t have to deal with Ubisoft Connect and Denuvo.

Here is a few I can think of that are a bit similar

• Sable
• Bastion
• Planet of Lana
• A Short Hike
• Spirit of the North
• TASOMACHI: Behind the Twilight
• AER Memories of Old
• The Witcher 3: Wild Hunt

Btw, you should definitely try Elden ring if you haven't already

Horizon Zero Dawn is on steam. Amazing game. Open world. I haven't played the second one yet but I need to.

The Outer Wilds

All due respect to the other recommendations in this thread (The Witcher 3 is in my top 3 favorite games ever), but I get the sense you're looking for a similar vibe - that self-paced, quiet, almost lonely exploration where, though you do have a goal, the point of the game is to wander the world and discover things. While most of these recs (and most open world games in general, so it's understandable) have a strong story focus, The Outer Wilds will give you that quiet, unguided exploration BoTW does so well.

(And I know explicitly turned down souls-likes, but Elden Ring also hits that vibe super well. If you're really stuck for something to play, it might be worth a try with one of the magic-focused builds that significantly reduce the skill needed)

There was one called Immortals Fenyx Rising that I remember being quite similar to BotW. Unfortunately it's Ubisoft

I would imagine horizon zero dawn and the Witcher would be what you're looking for.