Speaking of the Lunar sale, I have found quite a few good deals.
Wasteland Remastered 89% off https://store.steampowered.com/app/875800/Wasteland_Remastered/
Halo: Spartan Bundle 75% off https://store.steampowered.com/sub/51370
Death Coming/死神来了 80% off https://store.steampowered.com/app/705120/Death_Coming/
Hell is Other Demons 80% off https://store.steampowered.com/app/595790/Hell_is_Other_Demons/
Garbage 75% https://store.steampowered.com/app/1253710/Garbage/
Mutant Football League 70% off https://store.steampowered.com/app/529520/Mutant_Football_League/
Halo Wars: Definitive Edition 75% off https://store.steampowered.com/app/459220/Halo_Wars_Definitive_Edition/
Salt and Sanctuary 75% off https://store.steampowered.com/app/283640/Salt_and_Sanctuary/
Death and Taxes 60% off https://store.steampowered.com/app/1166290/Death_and_Taxes/
Celeste 75% off https://store.steampowered.com/app/504230/Celeste/
ASTRO AQUA KITTY 60% off https://store.steampowered.com/app/1346390/ASTRO_AQUA_KITTY/
Dragon Creek 60% off https://store.steampowered.com/app/1495420/Dragon_Creek/
Leisure Suit Larry - Wet Dreams Dry Twice | Standard Edition 75% (might be only 65% if you don't own the previous game) https://store.steampowered.com/app/1373430/Leisure_Suit_Larry__Wet_Dreams_Dry_Twice/
Nexomon: Extinction 55% off https://store.steampowered.com/app/1196630/Nexomon_Extinction/
Prince Of Persia Franchise 82% https://store.steampowered.com/bundle/23487/Prince_Of_Persia_Franchise/
Travis Strikes Again: No More Heroes Complete Edition 70% off https://store.steampowered.com/app/961490/Travis_Strikes_Again_No_More_Heroes_Complete_Edition/
STEINS;GATE 60% https://store.steampowered.com/app/412830/STEINSGATE/
Rainbow Six Bundle 72% off https://store.steampowered.com/bundle/755/Rainbow_Six_Bundle/
Interstellar Space: Genesis 60% off https://store.steampowered.com/app/984680/Interstellar_Space_Genesis/
Halo: The Master Chief Collection 60% off https://store.steampowered.com/sub/376282
Disco Elysium - The Final Cut 60% off https://store.steampowered.com/app/632470/Disco_Elysium__The_Final_Cut/
Conception: Bundle of Joy 75% off https://store.steampowered.com/bundle/12996/Conception_Bundle_of_Joy/
EA STAR WARS TRIPLE BUNDLE 77% off https://store.steampowered.com/bundle/18052/EA_STAR_WARS_TRIPLE_BUNDLE/
For more deals you can use https://steamdb.info/sales/ to find historical lows.
Though I will be waiting to see what February's Humble Bundle games before I buy anything.
