Also, a limited-time Steam badge is available if that sounds interesting enough.

Fruitbat Factory is having some good sales for golden week.
https://store.steampowered.com/bundle/728/Fruitbat_Factory_Publisher_Bundle/

The Yakuza Remastered Collection is down to $25.89. Pretty sure this is the lowest it's been so far.

https://store.steampowered.com/bundle/18730/Yakuza_Remastered_Collection/

welp, the only thing I bought was all story dlcs for Little Nightmares

STAR WARS™ Battlefront™ II -70% $11.99 https://store.steampowered.com/app/1237950/STAR_WARS_Battlefront_II/
STAR WARS™ BATTLEFRONT™ BUNDLE -72% $16.58 https://store.steampowered.com/bundle/16840/STAR_WARS_Battlefront_Bundle/
GOD EATER 3 -80% $11.99 https://store.steampowered.com/app/899440/GOD_EATER_3/
WRG GAMES BUNDLE -99% $0.22 https://store.steampowered.com/bundle/7398/WRG_games_bundle/

KILL la KILL -IF 67% off (lowest ever... I think) https://store.steampowered.com/app/922500/KILL_la_KILL_IF/

https://store.steampowered.com/sub/132479/
%90 for the metal gear one not sure but around $2 i guess
https://store.steampowered.com/app/311340/METAL_GEAR_SOLID_V_GROUND_ZEROES/#app_reviews_hash

SUPER DRAGON BALL HEROES WORLD MISSION is 85% OFF. Lowest Record.

-93% Deponia Full Scrap Collection https://store.steampowered.com/bundle/18569/Deponia_Full_Scrap_Collection/

Code Vein also recorded the highest discount as well

All Senran Kagura games are at sale as well, I just bought a lot of dlc I wanted for these games (dont judge me,among ecchi games these are actually good).

Disgaea PC & Disgaea 2 PC on historical low too

Does the badge give xp??

Towaga: Among Shadows USD 1.49/EUR 1.24 historical low

Edit:My bad, I made a mistake this is not in the Golden Week sale but the price is correct.

METAL GEAR SOLID V: The Definitive Experience is a sub, not a bundle, you won't get discounts if you own produst from a sub, only works with bundles.

🎏

( ｢'Θ')Don't forget this.😊👦👧

Tekken 7 is at historic low.

A nice sale. I got Sonic Mania + Encore DLC, Sonic Adventure DX, Sonic Adventure 2, DEEEER Simulator and PAC-MAN Championship Edition DX+.

Woah, just noticed Spike Chunsoft went full retard with regional prices. Just... wow.

Steam bundles with custom prices

I know it's not a true purchase together bundle, but you still has to buy it together. I don't think a third clarification is needed.

METAL GEAR SOLID V: The Definitive Experience is typed as a package, not a bundle, so that should instead be listed under a third categorical section, or the category header should be changed to properly distinguish between bundles and packages (instead of incorrectly calling them both bundles). Since Valve does hold packages and bundles to very distinct differences, the manner by which it's presently offered in the thread post is very misleading.

That said, unlike typical packages, it seems you don't get completely screwed on this one:

METAL GEAR SOLID V: The Definitive Experience: According to our records, you already own one or more of the items included in this package on Steam. If purchasing for yourself, you will receive an extra, giftable copy of: METAL GEAR SOLID V: THE PHANTOM PAIN

Not sure how that works with Steam's current gifting system, though [in the sense of whether it'd store to inventory or require you to gift it immediately]. Either way, it'd be worth putting a note for that in the thread post.

Maybe CINERIS SOMNIA or STAR WARS™ Battlefront™ II

Yakuza Remastered Collection price increased from 25.89 to 32.13.

Perhaps not part of this sale but on sale anyway, Shemue III's Season Pass is really cheap at 6 €
https://store.steampowered.com/bundle/16916/Shenmue_3_Season_Pass/