Last 7 days
Screenshots, achievements, specs, every price change and sale we've seen on Steam, and trading cards.
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Steam prices for United States (change the country in the top bar), and Steam keys from authorized stores.
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100% positive of 10 · Positive · Live from Steam
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Free on Steam. The demo has its own app, so its players are counted separately.
A roguelike tower defense built around permanent choices. Draft one card each wave, commit to six tower slots, and stack modifiers that change how your defenses fight. Survive 20 waves solo or in 2-4 player co-op. Try the free demo.
Live data from Steam, tracked by SteamPlayerBase.
What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 100% on 2026-11-01 → 100% today (10 reviews)
No authorized Steam key store lists this game right now.
Not tested by Valve yet. Results from Valve's own testing.
Valve hasn't published test details for this game.
Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
Changed: Shared content (1 download)
beta
beta branch for new co-op feature
Co-op Tower ownership is readable on fully modded towers: the targeting badge and tooltip border wear the owner's board colour. Expanded Chassis and Decommission Order caps now count per player, since they only act on your own board. Leftover Steam lobbies are…
Overcharger active: the Overclock frenzy is now 4× fire rate (was 5×).Late-endless spawn pressure: from endless wave ~139, enemies spawn about 2% faster each wave. This stops a high-attack-speed Corrosion board from clearing waves indefinitely.
Each common, rare and super rare upgrade card now as a unique icon. When Art Style is set to Classic, the old icons will still be displayed. Balance Bumped Corrosion payload up from 4% to 5% max hp
Prefer the original dev-art aesthetic? Legacy visuals are still available. There's a Art Style toggle in Settings to switch between Classic (1.6.3) look and the new modern HD look.
Balance Corrosion payload halved, from 8% to 4% max HP. A crowd enemy now takes 100 primary hits to corrode away instead of 50. Colossus Corrosion rate raised from 0.0625 to 0.10, so a Colossus takes 1000 primary hits instead of 800. Hot Bearings / Heavy Round…
Slot Theory 1.6.3 Endless wave length re-designed Deep endless waves grew without limit. Wave 100 on Normal was 881 enemies over 8 minutes, most of it waiting. Each wave now has a spawn budget (about 60 s at wave 21, +1% a wave) and the enemy count fits inside…
Steel Containment The containment floor is now worn steel: raised plates with chamfered rims, panel layouts, grime, cracks and scuffs, vents and grilles, and the odd amber stencil or hazard stripe. The floor sits darker than the walls and towers, with soft sha…
New Campaign Chapter: The Rift Bloom Chapter 4 continues the campaign after Fault Lines on the three Rift Zone maps: Warp, Overdrive and Blackout. Each stage has breach events and the Colossus finale. All three stages use Fault Lines' 10 towers and all 15 modi…
Game Speed 20x game speed can now be earned on desktop: win a run with at least 85% of its wave time at 10x or faster. The unlock is permanent and announced on the win screen. Until then, stepping up from 10x shows a locked 20x step with the unlock condition i…
Drafting Ban now works on every card: towers, modifiers, Field Mods, and Rare and Super Rare upgrades. A banned upgrade is replaced by another of the same rarity when one is left. Anomaly Feed applies its card right after your final pick, so the fed card fight…
Co-op Improvements Lobby: each seat shows board colour, P1-P4 tag, Steam avatar, operator and status. Host picks the operator for AI seats. HUD player strip: every player's name, operator and board colour. Nameplates above each board during the draft, fading o…
Draft New draft cards: metal frames by rarity, icon bay, uniform layout. Tower cards show DPS first, then dmg / attack rate / range. Card headline values include run-wide bonuses. Static draft backdrop. Fixed Blast Core preview radius. Deadzone text: "pinned" …
Public Steam Profiles Your profile can now be seen by other players. It publishes to Steam on launch, at the end of a run (solo and co-op), and when you change your title. Turn it off with Public Profile in Settings (on by default, Steam builds only); turning …
Slot Theory 1.7.2 A big visual update. All seven operators are redrawn from their concept art with new backdrops, and almost every projectile, arc, surge and explosion is rebuilt with lit glows and light that falls on the floor. Under the hood, the game now pl…
Slot Theory 1.7.1 A follow-up to the Clean Containment look. Like 1.7.0 this is presentation only: paths, slot positions, tower ranges and hit boxes are unchanged, no run plays differently and existing leaderboard scores stand. Modifier medallions Modifier ico…
Slot Theory 1.7.0 Clean Containment: a new look for the whole battlefield The synthwave grid is gone. Every map now draws as a containment facility: a dark plated metal floor, a raised lane with real walls, solid machined towers and shaded enemies, all lit fro…
Slot Theory 1.6.0 - Update Notes Co-op is here. Two, three or four commanders, one shared lane, one pool of lives, and seven maps built for nothing else. Your partner's leak is your leak. There is no polite way to say "that was your end". Also: 68 badges (up f…