Hidden Gems at the Steam Winter Sale

Super Time Force Ultra 75% off

Age Of Wonders 3 70% off
Project Zomboid 33% off
Darkest Dungeon 50% off
Running with Rifles 40% off

Updated the list

Oldschool:
Aquanox 1&2 for 0,79€

See if the list fits the criteria:

Shadowrun returns http://steamcommunity.com/app/234650
Tiny Troopers http://steamcommunity.com/app/216110
Deponia complete journey http://steamcommunity.com/app/292910
Neighbours from hell http://steamcommunity.com/app/260750
Max: The curse of Brotherhood http://steamcommunity.com/app/255390
Rocketbirds: Hardboiled Chicken http://steamcommunity.com/app/215510
Secret of Monkey Island http://steamcommunity.com/app/32360
Minu Ninjas http://steamcommunity.com/app/35000
Wolfenstein: The new order http://steamcommunity.com/app/201810
Age of Empire 3 Complete http://steamcommunity.com/app/105450

Would Parcel for 90% off count? I think highest off was 80% before.
Either way, picked that up :)

Door kickers 80% http://store.steampowered.com/app/248610/

CONSORTIUM -90%

By the way - since you already have them in your post, I feel I should point out that the Alienware stackable coupons for Dropsy and OlliOlli2 also work on the deluxe editions. I know there are also Shadow Warrior Alienware coupons floating around too, though not sure if they work likewise on the respective deluxe edition.

What is alienware coupon, where i get one. I want olliolli2 -50% + -75% with coupon :D

I just bought STASIS for $5 on GMG
http://www.greenmangaming.com/s/us/en/pc/games/action/stasis/?affsrc=1&utm_medium=affiliates
Its $ 6.24 and when you add the 20% off coupon they're running right now (XMAS20-PERGMG-SVINGS) it turns out to be an even $5. :)
I live in NA, so not sure if this is the same everywhere else.

The Masterplan: 75%
http://store.steampowered.com/app/313080/

http://store.steampowered.com/app/334040/ Down to One

Blade Symphony : 90%
http://store.steampowered.com/app/225600/

Men of War + Theatre of War franchise for the history nerds.

my gem is

Elminage Gothic
http://store.steampowered.com/app/291960/

for wizardry fans.
Current Lowest Price: $2.99 at Steam - Historical Lowest Price: $2.49 at GOG on Wed Nov 04 2015
dunno if gog plays in the lowest price
if yes sorry.

quote from a review
why instabuy

"Elminage Gothic is a very offensive-oriented game. Oh sure having a low AC is nice, but the monsters in this game are designed to kill, not hurt. As soon as you arrive in the second dungeon you'll be welcomed by ninjas. Getting beheaded is the most common cause of death in this game. Granted, that's not to say you won't be seeing your squishy mages nuked constantly by lightning bolts, nor will devastating status effects such as stone be a rare occurence. That's just how often death occurs in this game. If you've entered a new area that's out of your league (gear isn't good enough or lacking experience), this game will let you know in the hardest way possible.

Elminage Gothic isn't what I'd call balanced. In fact a lot of battles in this game are going to be one-sided. I'm not expecting fairness when I play D-RPGs. On average the difficulty of these games is higher than normal. Besides, this game offers everything from 99 save slots to an easy teleport spell, so you never really lose progress. Sometimes though, the average enemy encounter can be absolutely ridiculous. Take for example the Master Ninja. Imagine if a ninja started the battle invisible. They could attack (and behead) you, but you couldn't do anything about it for at least one round. These guys attack twice, that's potentially two dead party members. Master Ninjas can attack in groups of three or more. For maximum effect let's say you get ambushed by a group of these ♥♥♥♥♥♥♥s.

Are you freaking kidding me?

It can go deeper than that. Picture a group of werewolf archers. They have a skill called lightning attack. Basically it's a first-strike move. Before you ask, yes these guys behead. That wasn't enough so the archers are paired with enemies that can cause party-wide status effects. These effects can include sleep, paralysis, whatever. So by the end of the battle every in your party is suffering from some kind of ailment. These archers have a pursuit sweep ability, where at the end of the round they automatically strike all ailing party members. Your sleepy, scared, poisoned, or otherwise indisposed party is going to suffer through potentially SIX waves of behead-capable arrows."

:DDDD MAN IM IN LOVE

Fairy Fencer F for 70% off not a bad deal
http://store.steampowered.com/app/347830/

Jets'n'Guns -60%

Brothers - A Tale of Two Sons - a wonderful game
http://store.steampowered.com/app/225080/

Dropsy 3,34€

-50% + Alienware stackable coupon -33%
http://store.steampowered.com/app/274350/

Legend of Grimrock 2 (4,39€) -80%
http://store.steampowered.com/app/251730/

some great games in here :)

Legend of Grimrock Bundle (5,59€) -80%
http://store.steampowered.com/sub/49358/

I agree about legend of grimrock 2 and brothers a tale of two sons.

I'd probably add Forced (85%), one of the best good-looking co-op games around.
And maybe Teslagrad (80%).

Found some unread email in my junk box, I guess I had some leftover coupons:

Shadow Warrior Coupon: ZJW7X-6RKNF-0H35R
Hotline Miami 2 Coupon: WM327-38JEH-0REYC
Dropsy Coupon: Z588D-8KX4H-2G03T
OlliOlli 2 Coupon: WLR36-VT4AA-L5RDC
Heavy Bullets Coupon: 90LH6-3N8XA-F4X3G
Talos Principle Coupon: RBZNA-WZ9DF-8Z6JY