Single-player games like UNDER DEFEAT
Below are 17 single-player Steam games similar to UNDER DEFEAT, 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 UNDER DEFEAT page.
Ranked picks
- 1
Earthion
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Earthion is a side-scrolling space shooter developed natively for 16-bit systems. Guide space fighter pilot Azusa Takanashi in her fight to repel the alien invaders and save planet Earth.
- 2
Radiant Silvergun
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Set on the earth and in space on July 14, 2520 A.D., the film explores the mystery of mankind's extinction. Various terrains become battlefields. Enemies attack from all directions. There are 23 bosses in total. Aim for a high score by making full use of score bonuses and level-up weapons!
- 3
DEVIL BLADE REBOOT
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
An immersive pseudo-3D shoot 'em up experience that pushes the limits of pixel art. Push your score higher with the innovative Berserk System: the closer they are, the more points you get!
- 4
Assault Android Cactus+
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Assault Android Cactus is an intense arcade style twin stick shooter - pick from one of nine unique synthetic heroines and blast your way through overwhelming robots hordes to save the ship from its own workforce. Supports single player and local co-op game modes.
- 5
NIGHT STRIKER GEAR
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
A brand new entry to the series, NIGHT STRIKER GEAR revitalizes the sprite scaling pseudo-3D style with polished graphics. The new GEAR System gives an added depth to the gameplay without sacrificing the intuitiveness. Feeling the rush of fast-paced music, strike through the night once more!
- 6
Savant - Ascent REMIX
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Savant - Ascent REMIX is an explosive shoot-em-up / scrolling shooter, starring an acrobatic wizard on an elevator-ride. Unlock destructive spells & acrobatic moves as you survive through a tower brimming with robotic fiends!
- 7
Commando Collection
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
A reboot of classic 2D side-scrolling shooters, featuring a new Survival Mode and Workshop system. Fight as a WWII Allied soldier across diverse battlefields with imaginative weapons. Survival Mode brings fresh enemies, epic bosses, and new challenges—relive childhood memories with a twist!
- 8
Thunder Wolves
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
When this “wolf pack” strikes, you hear the thunder roll. The Thunder Wolves attack from the air. They are mercenaries, and the best helicopter pilots in the world. Every one of them is ready for action at all times—and ready to fight evil, wherever it lurks.
- 9
Strania - The Stella Machina -
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Japanese boutique game studio G.rev makes its long-awaited debut on Steam with Strania!
- 10
Raiden III x MIKADO MANIAX
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Soar sky-high in Raiden III x MIKADO MANIAX, an electrifying entry in the classic arcade shoot-‘em-up series! Customize your music, wallpapers, game mode, and more before launching into high-octane aerial action!
- 11
STRIKERS 1945
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
The vertical scrolling shooter game released in the arcade by "Psikyo". You can set the difficulty level, controls, screen orientation, etc. In addition, online rankings have been implemented! Aim to be the world's best Striker!
- 12
STRIKERS 1945 II
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Easy to play, hard to master. This is one of the most iconic arcade shooter of the 90s, released by Psikyo. It comes back with many customizable options and online rankings!
- 13
TENGAI
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Miko-san and ninja girl blast away! The best of eccentric Japanese-style shooter is here! With online rankings!
- 14
STRIKERS 1945 III
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Here's a challenge from 90's arcades! The ultimate Psikyo shooter! With online rankings.
- 15
Psyvariar Delta
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
Thrive on Danger: Master the 'Buzz' to transform peril into pure power. Graze the edge of destruction to fuel your evolution. Harness the fleeting invincibility of each level-up to dive even deeper into the barrage.
- 16
Ninja JaJaMaru: The Great Yokai Battle + Hell
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
"Ninja JaJaMaru : The Great Yokai Battle + Hell" est un jeu d'action en 2D. Il s'agit de la dernière interaction de la série Ninja JaJaMaru qui introduit de nouveaux contrôles et de nouvelles mécaniques de jeu dans la série.
- 17
GUNBIRD
Single-player alternative to UNDER DEFEAT — playable solo, no multiplayer required. Shares Action with UNDER DEFEAT.
"Marion" the little great wizard in the steampunk world. The masterpiece of the "Psikyo Shooting"! Online rankings are available.