Single-player games like ADACA
Below are 13 single-player Steam games similar to ADACA, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like ADACA page.
Ranked picks
- 1

BIORAGE
Single-player alternative to ADACA — playable solo, no multiplayer required. Shares Action with ADACA.
Biorage is a high-intensity story-driven corridor FPS.
- 2

Blue Sun
Single-player alternative to ADACA — playable solo, no multiplayer required. Shares Action and Indie with ADACA.
After years of oppression, the time has come to rise up. In this action-adventure boss-rush game, uncover a devastating conflict's history and take down FOFEC, an experimental enemy unit stripped of its humanity and modified to become the perfect super soldiers.
- 3

Eldritch Break
Single-player alternative to ADACA — playable solo, no multiplayer required. Shares Action and Indie with ADACA.
Vibrant, high-octane 2.5D Boomer Shooter that smashes together the fast-paced action of classics like Doom and Duke Nukem with the mind-bending, non-Euclidean environments of an eldritch prison.
- 4

Skarven
Single-player alternative to ADACA — playable solo, no multiplayer required. Shares Action and Indie with ADACA.
Fallow fields birth strange life. Battle botanical abominations and a fanatical militant cult as you journey through a dark and distorted vision of the Danish countryside. Experience deep lore, thick atmosphere, and razor sharp mechanics in this raw yet refined classical narrative FPS.
- 5

SCP: Broken God
Single-player alternative to ADACA — playable solo, no multiplayer required. Shares Action and Indie with ADACA.
You play as a member of the Foundation who has recently transferred to a new facility. During a routine day of work, an incursion occurs by a religious cult, known as the Church of the Broken God. Your role is one of a survivor, aiming to escape the breached facility or attempting to stop the cult.
- 6

G String
Single-player alternative to ADACA — playable solo, no multiplayer required. Shares Action and Indie with ADACA.
Slip into the Standard Issue Biosuit as Myo Hyori, a gifted Korean teenage girl who must face the perils of the future. Survive many hazards, explore a seemingly endless metropolis and beyond as the world around you implodes and history marches towards its inevitable conclusion.
- 7

Project Silverfish
Single-player alternative to ADACA — playable solo, no multiplayer required. Shares Action and Indie with ADACA.
Explore a hostile, living world: Uncover forgotten horrors, both man-made and supernatural, as you hunt for powerful weapons and exotic artifacts.
- 8

Hard Reset Extended Edition
Single-player alternative to ADACA — playable solo, no multiplayer required. Shares Action and Indie with ADACA.
Over-the-top destruction, loads of enemies & a beautifully realized cyberpunk setting. Hard Reset is here to shake up the shooter scene. Try the demo now.
- 9

S.T.A.L.K.E.R.: Shadow of Chernobyl
Single-player alternative to ADACA — playable solo, no multiplayer required. Shares Action with ADACA.
S.T.A.L.K.E.R.: Shadow of Chernobyl tells a story about survival in the Zone – a very dangerous place, where you fear not only the radiation, anomalies and deadly creatures, but other S.T.A.L.K.E.R.s, who have their own goals and wishes.
- 10

Half-Life 2
Single-player alternative to ADACA — playable solo, no multiplayer required. Shares Action with ADACA.
Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance. Experience the landmark first-person shooter packed with immersive world-building, boundary-pushing physics, and exhilarating combat.
- 11

Perfect Date
Single-player alternative to ADACA — playable solo, no multiplayer required. Shares Indie with ADACA.
Perfect Date is a dating simulator where you will have the chance to prove that you can seduce some of the best-looking girls that you have ever met.
- 12

Haloo
Single-player alternative to ADACA — playable solo, no multiplayer required. Shares Action and Indie with ADACA.
Fight the endless mass of enemies, collect loot, get stronger and Haloo!
- 13

TimeSplit
Single-player alternative to ADACA — playable solo, no multiplayer required. Shares Action with ADACA.
TimeSplit is a fast-paced cartoon FPS with creative time powers. Bend, pause, and rewind time to outsmart foes, dodge fire, and control battles. Use a diverse arsenal of weapons and abilities where every fight becomes a puzzle of timing and strategy.