Coming soon
Castillon
Mini RTS × Tower Defense · Q4 2026
A bite-sized strategy game that blends RTS base-building with tower defense. A lone wizard, a new land, and hordes of demons that come when the sun goes down.
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We make games that
brighten your day
One Up Plus is a two-person indie studio from Sydney, Australia. Roguelike deckbuilders, tactics, cozy adventures and chaotic couch co-op — since 2012.
11games shipped & in the works
14years making games
2founders, one studio
Now loading Coming soon to Steam
Wishlist what's next
Coming soon
Dungeon Buster
Incremental Dungeon-Building Autobattler · Q4 2026
An incremental dungeon-building extraction autobattler RPG. Expand your stronghold room by room, watch your hero fight through it automatically, and turn every successful expedition into permanent power.
Coming soon
Odd Jobs: On The Lot
Co-op Physics Party Sim · To be announced
A physics-powered co-op game set in a vibrant Australian car park. Return runaway trolleys, wash cars, unload trucks and deliver groceries straight to the boot — before it all goes sideways.
Level select The catalogue
Our games
Free to play
Luffi: Homebound
Cozy Adventure
A short, cozy adventure starring the cutest red panda.
Out now
Spellslayer
Turn-based Tactics Roguelite
Puzzle-tactics roguelite on a grid of doom.
Out now
Dungeontop
Roguelike Deckbuilder
Roguelike deckbuilding meets tabletop miniatures.
Out now
Defend the Rook
Tactics × Tower Defense Roguelike
Roguelike tactics board combat with tower defense.
Out now
Deliverance & Reign
Roguelike Deckbuilder
Draw. Destroy. Die. Repeat — then reverse your role.
Out now
Nine Realms: Revolt
Story-driven Deckbuilder
A Norse deckbuilding odyssey with dice.
Out now
Demontide
Card Combat RPG
500 cards. 40 bosses. One curse over Port Haven.
In development
Heroes of Last Haven
Collectible Card Game
Collect cards, trade with others, save Last Haven.
Player 1 & 2 The studio
A husband-and-wife team, plus friends
Based in Sydney and operating since 2012, One Up Plus started as two people and has grown into an indie studio that collaborates with many different talents — from award-winning composers to publishing partners.
Striving to bring delight to players young and old through touch, images and sound is something we value and work for each and every day.
P1
Maggie Xu
Producer
P2
Andrew Chia
Programmer
Side quest Game development services
Need a team for your game?
Full-cycle development or individual tasks — mobile, PC, console and web3. Let's talk about your project.