For a lot of players, Kingdom Rush tower defense is the genre. Ironhide Game Studio’s fixed-path defender has been the gold standard since 2011, and there are now five mainline games plus a pile of spinoffs, which makes “where do I start” a real question. This guide breaks down every Kingdom Rush game in order, says which one to play first, and points you toward the games that come closest when you have finished them all.
What Makes Kingdom Rush Tower Defense Tick
The formula has barely changed because it was right the first time. You place towers on fixed plots along a set path, your hero roams the lane as a hands-on unit, and you call reinforcements and drop spells to plug the gaps. Four base tower types each branch into two specializations, so the strategy is in your loadout and your timing, not in maze-building. Each mission runs a tight 10 to 15 minutes, and the hand-drawn art has aged better than almost anything else in the genre. If you are brand new, our primer on what tower defense actually is covers the basics these games assume you know.
One buying note up front. On Steam, every tower and hero is included, no in-app purchases. The mobile versions, especially the later ones, sell heroes and towers separately, so the PC releases from Ironhide Game Studio are usually the better value if you want everything unlocked.
1. Kingdom Rush (2011)
The one that started it all, and still the cleanest introduction. The original ships eight tower specializations, 18 tower abilities, over 60 enemies, and 13 heroes unlocked at no extra cost on Steam. The campaign that pits you against the wizard Vez’nan is a perfect difficulty curve, ramping from gentle to genuinely brutal across its bonus stages.
It is the most-played free tower defense game on the web for a reason, and it holds up flat-out. You can buy it on Steam, play it on mobile, or boot the classic in a browser, which we cover in our roundup of online tower defense games.
2. Kingdom Rush: Frontiers (2013)
The sequel takes the formula somewhere hotter, swapping the medieval kingdom for deserts, jungles, and sunken ruins. Frontiers is where Ironhide started getting playful with towers, handing you things like the DWAARP artillery cannon and tribal axe-throwers, plus a stronger roster of heroes. It is a touch harder than the original and a little more confident in its design.
If the first game hooks you, this is the natural next step. Nothing here reinvents the wheel, but it is the sound of a studio hitting its stride.
3. Kingdom Rush: Origins (2014)
For a lot of fans, Origins is the peak. This prequel hands you an elven army, with elf archers, stone druids, and magic-wielding mages replacing the human roster, and it is the most polished of the first three. The hero design is the best in the trilogy, the levels are gorgeous, and the difficulty is tuned just shy of unfair.
It earns its spot on any list of the best tower defense games ever made. If you only ever play one Kingdom Rush, plenty of people would tell you to make it this one.
4. Kingdom Rush: Vengeance (2018)
The fourth game finally lets you play the bad guy. You command Vez’nan’s dark army across 31 stages and seven realms, with 20 new towers and a loadout system that lets you swap which towers you bring into each level. That single change adds a real layer of pre-mission planning the earlier games never had.
The honest catch: Vengeance leaned hardest into selling towers and heroes as add-ons, especially on mobile. The Steam version bundles more of it together, so that is the one to grab if the piecemeal pricing bothers you.
5. Kingdom Rush 5: Alliance (2024)
The newest entry, and the freshest the series has felt in years. Alliance unites the kingdom’s heroes and Vez’nan’s forces against a bigger threat, letting you mix towers from both sides of the roster in a single defense. It is the most modern-feeling Kingdom Rush, with sharper visuals and the deepest tower pool yet.
If you have played the others to death, this is the reason to come back. You can grab it on Steam as Kingdom Rush 5: Alliance TD.
Where Should You Start?
Play in release order. Starting with the original Kingdom Rush lets you feel the formula evolve, and the difficulty scales up naturally as you move to Frontiers and Origins. If you only want the single best entry point, Origins is the most polished and the easiest to fall for. Skip ahead to Vengeance or Alliance only if you specifically want the villain or two-faction twist. Whatever you pick, these are some of the strongest iOS tower defense games and Android tower defense games on either store.
Tower Defense Games Like Kingdom Rush
Once you have cleared the franchise, a few games scratch the same itch. These are the tower defense games like Kingdom Rush worth your time next.
Iron Marines Invasion is the obvious pick, because it is Ironhide’s own. It trades fixed towers for a light real-time strategy layer, with the same art style, hero design, and tight mission structure, just with movable squads instead of static towers. It is the closest thing to Kingdom Rush that is not Kingdom Rush, and you can find it on Steam.
Bloons TD 6 is the other titan of mobile tower defense. It is deeper and far more endless than Kingdom Rush, built around open maps and monkey towers with absurd late-game upgrades. The vibe is goofier and the grind is longer, but the strategic ceiling is higher.
Defense Grid 2 is the PC pick, a sci-fi maze defender where your placement reroutes the enemy path itself. It is slicker and more systems-driven than Kingdom Rush, and it sits high on our list of the best tower defense games on PC.
The Short Version
Start with the original Kingdom Rush, treat Origins as the crown jewel, and save Vengeance and Alliance for when you want the formula remixed. When you have run out of kingdoms to defend, Iron Marines, Bloons TD 6, and Defense Grid 2 are waiting. For more, browse the rest of our tower defense guides and the wider strategy game guides, or head to StrategyGame for whatever you want to play next.