I'm posting the discount amount, but no the prices, mostly because the regional pricing can vary so much. But rest assured these games are all worth the asking price. They're among my favourite games, but I suspect many have never heard of them, or have overlooked them.
Strategy
~~~
Thea: The Awakening. ***50% off***
It's a bit of an RPG, adventure game, and 4X all rolled into one. You control a single village and basically try to survive while also seeking to return your god to power. There's a lot of stats and management involved, and secrets to be uncovered; it's remarkably deep. The card combat it uses to resolve challenges is really fun, based on the various stats of the parties involved. Another cool aspect is that it's based on Polish mythology, so if you're familiar with the Witcher you'll recognise some parallels, like strigas.
~~~
Age of Wonders 3 (plus expansions) ***40-75% off depending on what you're buying***
Ok, so this is the best fantasy 4X ever made. It has everything: tactical, turn-based combat; an immense roster of heroes, items, leaders, magicks, and races; several campaigns, and a host of options for custom battles. It also features a smooth, Civ5-like UI and is among the most approachable 4X in the genre. I cannot recommend this game enough.
~~~
Adventure
~~~
Technobabylon ***75% off***
A cyberpunk adventure game with an incredible vision of the future. It has a great assortment of characters, phenomenal writing, and solid VO; on a good day, I'd call it my favourite adventure game of all time. I don't want to spoil anything, but suffice it to say everything the game introduces comes together in a nice, satisfying way.
~~~
Roguelikelikes
~~~
One Way Heroics (and Plus expansion) ***75% off the OWH/OWH+ bundle***
It's basically a JRPG roguelike, condensed into its very essence. Being constantly forced to move to the right, it has a frenetic pace, almost a brevity, that makes it refreshing compared to other roguelikes; runs last minutes, and every turn is progress. There are persistent unlocks that make the difficult goals possible, and a wide variety of approaches to take in a particular run. There's also a really cool social/online aspect with a leaderboard constantly chiming in with stats and figures. OWH is a charming and delightful time.
~~~
Action
~~~
Intrusion 2 ***70% off***
A 2D shooter with flair. Although it's not a super long game (maybe 4 hours) it has some of the best boss fights I've ever experienced. They are truly spectacular to behold, and fun to fight. If you've ever played Mischief Maker, this is the shooter take on it.
~~~
Dark Messiah of Might & Magic ***50% off***
Think Half-Life 2, if it were a fantasy action RPG. The singleplayer campaign is surprisingly deep and meaty, with some impressive sights to see; there's (probably dead) multiplayer, but the singleplayer campaign is the draw here. There's plenty of weapons at your disposal, but, in this game, kicks are your most powerful weapon. Also, it's developed by Arkane and a weird spin-off of the Might&Magic strategy games.
~~~
[
DLC for Mount & Blade: Warband] Viking Conquest Reforged Edition ***75% off***
Ok, so this is a DLC total conversion for Mount&Blade Warband. It is a quasi-historical take on Mount&Blade, focusing on Vikings and the Western edge of Europe. It completely rebalances and reskins the game and economy, adding in some new features as well; most notable is the sailing/naval battle mechanic, but the optional morale system and survival mechanics add just as much to the game. I actually prefer this to regular M&B now, because the battles are so dramatically improved over vanilla; in this, a soldier's skill and equipment, plus the guiding hand of their commander, play a critical role in how successful an army is. It isn't enough to just have numbers--you must have the tactics to win. It's still as janky as regular M&B, but decidedly more immersive and balanced. I heartily recommend it if you like M&B at all--it's worth the money.