Single-player games like Ultimate Summer
Below are 11 single-player Steam games similar to Ultimate Summer, 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 Ultimate Summer page.
Ranked picks
- 1
Yet Another Zombie Defense HD
Single-player alternative to Ultimate Summer — playable solo, no multiplayer required. Shares Action with Ultimate Summer.
Top-down zombie shooter with tower defense elements featuring up to 4 players local and online co-op. Build your base by day, defend it by night, put your skills to the test to stay alive as long as possible! Darkness is coming. How long can YOU survive?
- 2
Blood Waves
Single-player alternative to Ultimate Summer — playable solo, no multiplayer required. Shares Action with Ultimate Summer.
Hardcore and bloody shooter where you will have to repel the attacks of the living dead using the destroying traps, defensive barricades and also weapon of close and long-range combat.
- 3
Ultimate Zombie Defense
Single-player alternative to Ultimate Summer — playable solo, no multiplayer required. Shares Action and Adventure with Ultimate Summer.
Team up or face it alone in this top down zombie slaying defense adventure! Featuring up to 4 player online co-op, cleanse the infected wave by wave and upgrade your base with traps & defenses to build the Ultimate Zombie Defense. Can YOU stop them?
- 4
How To Survive: Third Person Standalone
Single-player alternative to Ultimate Summer — playable solo, no multiplayer required. Shares Action and Adventure with Ultimate Summer.
Driven by community suggestion, 505 Games and EKO Software introduce you to a new single player 3rd person view experience that allows you to re-play the zombie crafting adventure "How to Survive" from a deeply immersive point of view.
- 5
Alien Shooter TD
Single-player alternative to Ultimate Summer — playable solo, no multiplayer required. Shares Action with Ultimate Summer.
Innovative Tower Defense inspired by legendary Alien Shooter series! The game was created in keeping with the best traditions of Sigma`s games, no concessions of any kind - everything is just like in real life!
- 6
Daymare: 1998
Single-player alternative to Ultimate Summer — playable solo, no multiplayer required. Shares Action and Adventure with Ultimate Summer.
DAYMARE: 1998 is a third-person survival horror game that recreates the mood of iconic titles from the '90s, with a fresh storyline. An incident that turns a small town into a deadly zone, three characters to play with and little time to find the truth, before its mutated citizens abruptly end your mission.
- 7
Zedfest
Single-player alternative to Ultimate Summer — playable solo, no multiplayer required. Shares Action with Ultimate Summer.
Zedfest is the goriest game show ever created! A hardcore 6 player co-op third-person shooter with the goal to complete objectives while neutralizing Zeds with lots and lots of visceral gore.
- 8
Foreign Legion: Buckets of Blood
Single-player alternative to Ultimate Summer — playable solo, no multiplayer required. Shares Action with Ultimate Summer.
Foreign Legion: Buckets of Blood is a cartoon-style third-person shooter. You take the role of a last-standing hard-boiled Legionnaire taking on an entire rebel army. A small campaign with various objectives, such as defending civilians, escorting a tourist bus and a mass-chicken-murder map.
- 9
Priest Simulator: Vampire Show
Single-player alternative to Ultimate Summer — playable solo, no multiplayer required. Shares Action and Adventure with Ultimate Summer.
A mockumental action game. Go forth and rock in the absolute weirdest and most messed up simulator in the history of sandbox shooters. Fully unprofessional English language version. This dub will have you in stitches.
- 10
Infernal Radiation
Single-player alternative to Ultimate Summer — playable solo, no multiplayer required. Shares Action and Simulation with Ultimate Summer.
Smash demons and deflect bullets in a hardcore arcade clicker with the RPG elements.
- 11
Booze Masters: Freezing Moonshine
Single-player alternative to Ultimate Summer — playable solo, no multiplayer required. Shares Action and Adventure with Ultimate Summer.
Freezing Moonshine is a unsettling first-person adventure game with elements of plant cultivation, puzzles, and lots of high-proof beverages. To survive, you'll need to gather harvests, take photos, and craft a wide variety of spirits.