Update history
Latest Zero Sum updates
Search patches, hotfixes, and dev posts. Load more to keep browsing the timeline.
Browse updates
Published changes
Search updates. Filter by source or date. Open any row for the full patch notes, or load more to continue the timeline.
- Zero Sum
Zero Sum Dev Log #3 - Modulo, the player's nuke
There's a 960 on screen. It's angry, it's TANKY and your minus does 1 damage. You could be here all day. Or you could fire one %80 and watch it solve all your problems. Modulo replaces a number with the remainder after…
Patch notes1 changeBalance - Zero Sum
NEW DEMO CONTENT: Verdict Mode
Verdict Game mode has been added to the Zero Sum Demo! try out this new game mode where every operation is judged. Your goal here is not to reduce to zero, but to do clean math in one operation. This mode serves as a sm…
Patch notes2 changesGameplayUI/audio - Zero Sum
Happy Pi Approximation Day! - Zero Sum Dev Log #2
Today is July 22nd. 22/7. Pi Approximation Day. Close enough to π and close enough to meet the Pie Pi Boss! π's digits go on forever and never repeat, which makes them perfect projectiles to hunt the player. Pie Pi fire…
Patch notes1 changeGameplay - Zero Sum
Zero Sum Dev Log #1
Now that Steam Next Fest is over and the Demo is polished, it's time to start the Dev Log! I'm making good progress with the game and release is still planned for Q4 2026, still a lot to do, though. Currently working on…
Announcement1 changeGameplay - Zero Sum
New experimental demo boss, steam leaderboards & small fixes
Added an experimental demo boss with Steam Leaderboards Changes to Math Paper map (Conveyor mode) — now plays differently from the standard Writing Paper mode Fixed some grading inconsistencies
Announcement3 changesFixGameplay - Zero Sum
Demo: additional boss behaviours, new upgrade nodes, loadout additions
Summation Serpent head now charges the player when no more segments are to be cleared can be stunned by clearing the number that breaks off the serpent Factorial Factory now spawns smaller and much slower factorials on…
Announcement3 changesGameplayMaps - Zero Sum
Minor Summation Serpent and Sieve Spider boss fixes
Sieve Spider now uses the correct number designs as follows: "spiky" numbers only for invincible numbers "glitched" numbers only for weakpoints (legs) NEW: "hatched" numbers instead of "spiky" for all sieve numbers. as…
Announcement3 changesFixGameplay - Zero Sum
Zero Sum Demo Playable During Steam Next Fest!
Gear up for some raw arithmetic violence! In Zero Sum, every bullet is an equation and every enemy is a number. No health bars. No hit points. Just pure mathematical combat in a hand-drawn twin-stick shooter that looks…
Announcement3 changesBalanceMaps
