IMHO.

Games like GUNS UP!

If GUNS UP! is your kind of game, the closest matches are Stronghold Kingdoms, Iron Harvest and Planetary Annihilation: TITANS — picked from the ranked list below. Reviewers single out its base building feels addictive, satisfying combat effects and competitive. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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GUNS UP! is a free-to-play side-scrolling strategy game released in 2018 by Valkyrie Entertainment that centers on asynchronous competitive base-builder and tower defense gameplay. Players construct their own bases using base-building mechanics while simultaneously attacking other players' uniquely designed fortifications in asynchronous-multiplayer battles. The game features a wide variety of units for strategic customization through its unit-customization system, complemented by a perk-system that drives long-term engagement as players slowly unlock new content. Alliance-wars provide a persistent multiplayer structure, while the massive length and short_bursts session shape accommodate casual play sessions. Players describe the base-building as addictive and find the opponent bases uniquely player-designed, with satisfying combat effects adding intensity to competitive encounters. The game holds an 80% positive rating from over 3,300 Steam reviews and supports online co-op play.

About GUNS UP!: GUNS UP! is a free-to-play side-scrolling strategy game that pits players against each other in a battle to destroy enemy bases to increase their own army’s strength. GUNS UP! combines the fun of enemy base invasion with tower–defense, for an experience like no other!

2018ActionStrategyFree To PlayCasualWindowsby Valkyrie Entertainment, LLC
GUNS UP! — Steam game cover
Players highlight
Base building feels addictiveOpponent bases are uniquely player designedSatisfying combat effectsCompetitiveIntenseAlliance wars

Players who liked GUNS UP! also play

Steam players who put hours into GUNS UP! also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. Stronghold Kingdoms

    WHY THIS

    Shares a competitive mood with GUNS UP!.

    Top pick for GUNS UP! fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Free To Play with GUNS UP!.

    A massively multiplayer grand strategy game, Stronghold Kingdoms is about forging alliances, political mind games, city-building and castle sieges with thousands of other players!

    2012StrategyMassively MultiplayerFree To PlayFreeSteam ↗
  2. Iron Harvest

    WHY THIS

    Second-strongest match for GUNS UP! fans by collaborative filtering across millions of Steam libraries. Shares Strategy with GUNS UP!.

    A classic real-time strategy game with an epic single player campaign, multiplayer & coop, set in the alternate reality of 1920+

    2020Strategy29.99 USDDeck PlayableSteam ↗
  3. Planetary Annihilation: TITANS

    WHY THIS

    Shares an intense mood with GUNS UP!.

    Third-strongest match for GUNS UP! fans by collaborative filtering across millions of Steam libraries. Shares Action and Strategy with GUNS UP!.

    Wage war across entire solar systems with massive armies at your command. Annihilate enemy forces with world-shattering TITAN-class units, and demolish planets with massive super weapons!

    2015ActionStrategyIndie29.99 USDDeck PlayableSteam ↗
  4. VEGA Conflict

    WHY THIS

    Shares an intense mood with GUNS UP!.

    Ranked #4 for GUNS UP! fans by collaborative filtering across millions of Steam libraries. Shares Strategy and Free To Play with GUNS UP!.

    Stake your claim, command your fleets, and wage epic war in space.

    2015StrategyMassively MultiplayerFree To PlayFreeDeck PlayableSteam ↗
  5. AirMech

    WHY THIS

    Shares a competitive mood with GUNS UP!.

    Ranked #5 for GUNS UP! fans by collaborative filtering across millions of Steam libraries. Shares Action and Strategy with GUNS UP!.

    AirMech® Strike is a fast paced Action-RTS game that can be played solo, coop, or competitively online. Earn Kudos and Experience in battle and unlock a wide collection of AirMechs and Units while you practice the perfect strategy to emerge victorious!

    2018ActionStrategyIndieFreeSteam ↗
  6. Company of Heroes 2

    WHY THIS

    Shares an intense mood with GUNS UP!.

    Ranked #6 for GUNS UP! fans by collaborative filtering across millions of Steam libraries. Shares Strategy with GUNS UP!.

    Experience the ultimate WWII RTS platform with COH2 and its standalone expansions. This package includes the base game, which you can then upgrade by purchasing The Western Front Armies, Ardennes Assault and/or The British Forces. More info in the "About This Game" section below.

    2013Strategy19.99 USDDeck PlayableSteam ↗
  7. Warpips

    WHY THIS

    Ranked #7 for GUNS UP! fans by collaborative filtering across millions of Steam libraries. Shares Action and Strategy with GUNS UP!.

    Warpips is the ultimate quick to learn but amazingly deep tug-of-war strategy game. Deploy the right composition of soldiers, tanks, helicopters and planes in this tight, streamlined strategy-focused war game. Compose the best army, research the right tech; overwhelm your enemy!

    2022ActionStrategyIndie16.99 USDDeck PlayableSteam ↗
  8. Foxhole

    WHY THIS

    Ranked #8 for GUNS UP! fans by collaborative filtering across millions of Steam libraries. Shares Action and Strategy with GUNS UP!.

    Foxhole is a massively multiplayer game where thousands of players shape the outcome of a persistent online war. Every individual soldier is a player that contributes to the war effort through logistics, base building, reconnaissance, combat, and more.

    2022ActionStrategyIndie29.99 USDDeck PlayableSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Free To Play with GUNS UP!.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeSteam ↗
  2. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Free To Play with GUNS UP!.

    Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?

    2025IndieSimulationMassively MultiplayerFreeDeck PlayableSteam ↗
  3. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Free To Play with GUNS UP!.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  4. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with GUNS UP!.

    STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.

    2024ActionFreeDeck PlayableSteam ↗
  5. Counter-Strike:Global Offensive

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Free To Play with GUNS UP!.

    Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).

    2012ActionFree To PlayFreeDeck PlayableSteam ↗
  6. The Expendabros

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Free To Play with GUNS UP!.

    The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.

    2014ActionIndieAdventureFreeDeck VerifiedSteam ↗
  7. Iron Snout

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Free To Play with GUNS UP!.

    Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.

    2016ActionIndieFree To PlayFreeDeck PlayableSteam ↗
  8. Eternal Senia

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Free To Play with GUNS UP!.

    Thoughts and expectations ARPG

    2015ActionIndieRPGFreeDeck PlayableSteam ↗

Frequently asked about GUNS UP!

Does GUNS UP! have multiplayer or co-op?
Yes — GUNS UP! supports multi-player play according to its Steam store listing (Multi-player, Cross-Platform Multiplayer, Online PvP).
What games are most similar to GUNS UP!?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside GUNS UP! are Stronghold Kingdoms, Iron Harvest, Planetary Annihilation: TITANS.
Who developed GUNS UP!?
GUNS UP! was developed by Valkyrie Entertainment, LLC and published by PlayStation PC LLC.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on GUNS UP!.

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16 Games Like GUNS UP! — Ranked for 2026 · imho.run