Here’s some mostly small game suggestions I wrote up for a hidden gems thread elsewhere :)

Yes I Know I Play a Lot of Roguelites:

• Cavity Buster ($4.49, -70%) – Top-down roguelite with a lot of engaging action play and a weird “toothpunk” theme
• RAM Random Access Mayhem ($8.99, -40%) – Top-down roguelite where you don’t have a character but jump between controlling enemies, each of which plays differently and has its own tricks.
• Space Bandit ($1.79, -10%) – Simpler and lightning fast top-down shooter with active enemies.
• Curse of the Dead Gods ($3.99, -80%) – Very good top-down roguelite with heavy melee and parry influence. More limited run variety, but good action and challenge.
• Cryptark ($3.74, -75%) – Top-down shooter roguelite where you infiltrate and disable the dungeons you fight in. No cross-run progression, but a grueling spending-management campaign mode and a more standard use-what-you-find mode.
• Fury Unleashed ($1.99, -90%) – Great 2d-platformer-twinstick with good, fast action.
• Trinity Fusion ($4.99, -75%) – 2d platformer roguelite with some heavier action, cute mechanics, and an unlockable parry, but rather overwrought bosses.
• Maraka ($1.61, -82%) – Janky but cute throwing-things-around game with deceptively rich active player abilities. Slow enemies but not a horde survivor.
• Red Tether ($6.49, -50%) – Bizarre little roguelite where you fight using bungie cables.
• Odinfall ($7.79, -40%) – Top-down shooter roguelite, with very Nuclear Throne feel, but with upgrade attachments for weapons, and an overmap you can choose routes through. Early access, and slow devs, but still fun and plays well.
• Metal Mutation ($1.69, -90%) – Janky top-down melee-oriented roguelite with strong parry and somewhat unusual upgrading.
• Replikator ($2.09, -65%) – Top-down shooter with fairly intense but forgiving action.
• Airlock Arena ($5.99, -50%) – Cute local multiplayer ship-raiding roguelite hijinks.

More Shooting Things but Not Scrolling Shmups:

• Assault Android Cactus ($3.99, -80%) – Absolutely top-tier arcade twin-stick, with a lot of variety across levels and characters.
• Galak-Z ($2.99, -85%) – Neat space shooter with a randomized endless mode. Often does not bother to go on sale lately, and this is a great price, so doubly notable.
• Devastator ($0.97, -86%) – Arcade twin-stick that manages to mix more pure twin-stick play with carefully engaging rules/scenarios for a unique recipe targeting more expert players.
• Nidus ($2.60, -70%) – Mind-bending dual-stick where you control two asymmetric characters against weird floral enemies.
• Devader ($1.83, -77%) – Weird little arcade twin-stick with some neat and unusual action tidbits (bullets can be consumed for firepower) and creepy bosses.
• Combat Complex ($3.99, -50%) – Early access top-down shooter loot ARPG that doesn’t have much on the ARPG side, but plays like an arcade twin-stick with neat enemy-on-enemy elements.
• Beat Invaders ($2.49, -75%) – Space Invaders reimagined as freighter defense with some roguelite upgrades for variety. Has some simple but fun elements that enhance the action.
• Yar’s Revenge ($1.99, -80%) – Rail shmup with strong two-stick play (instead of the painful single stick a lot of rail shooters have seemed stuck on) and hit-chaining design for extra interest.
• [Bot Vice](store.steampowered.com/app/491040/Bot_Vice/ ($3.99, -60%) – Gallery shmup with fixed but tough levels and unusual action options.
• Relic Hunters Legend ($4.79, -76%) – Top-down shooter ARPG. Poor, childish story, but some nice action, ability combinations, and space for team play.
• Ardein.Fall ($1.24, -75%) – Janky space shooter defense roguelite with cute run development and unusual structure where run generation only changes daily.

Now Some Scrolling Shmups:

• Sisters Royale: Five Sisters Under Fire ($4.19, -70%) – Vertical. AKA Castle Shikigami 4.
• SophStar ($4.99, -50%) – Vertical.
• Project X: Light Years ($8.99, -50%) – Horizontal.
• Shikhondo: Youkai Rampage ($7.49, -50%) – Vertical.
• Natsuki Chronicles ($2.99, -85%) – Horizontal.
• Rolling Gunner ($5.99, -70%) – Horizontal.
• Grand Cross: ReNovation ($5.99, -60%) – Vertical.
• Revolver360 Re:actor ($1.99, -80%) – Horizontal.
• Super Galaxy Squadron EX Turbo ($2.49, -75%) – Vertical.
• Zeit^2 ($1.99, -80%) – Horizontal. Time-puzzle action.

A Little Less Shooting:

• Tipston Salvage ($4.24, -75%) – PC didn’t get a good Storage Inc, but this adorable, multiplayer object filing and retrieval game fills in pretty well.
• Final Knight ($8.39, -40%) – Single-player party (yes, party) beatemup roguelite with a rich space for player action. Early access.
• Trials: Evolution ($4.99, -75%) – Looks like goofy biking but actually fascinatingly advanced 2d platforming, with a host of user-created levels (that you need to download separately in a pack, because Ubisoft shut the servers down).
• SpiderHeck ($5.99, -60%) – Fun versus platform fighter.

Some Always-Cheap Mentionables that Tend to Skip Sales and are Unsurprisingly Not Discounted this Time Either (aka Oh Look There were More Shooting Things After All):

• Radio Free Europa ($4.99) – Space shooter roguelite with some nice action and a lot of weapons and enemies.
• Huenison ($0.99) – Bizarre amalgamation of puzzle and shump.
• Nova Swarm ($3.99) – Gallery shmup with random enemies and a lot of fun personality. This has a 30 key giveaway thread open for a few days in their news. Please only enter if you’d play, since this is just a solo dev trying to get their game noticed and get some more players on the leaderboards. And the game’s only $4 you cheapskate thinking about clicking that giveaway. Yes, you. You’re making the game cry.