
Cartridge Defense is a tower defense game with over 300 distinct collectible cards that you will use to create your own decks to defend against robots in the cyberpunk inspired future. Play cards (cartridges) to spawn towers, upgrades, special abilities and more in a campaign or rogue-like mode.
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0/day in the week to Aug 4 → 0/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
Genres
Engagement
Reviews
Themes across 46 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
A fun mixture of deckbuilding and tower defense games. Recommended to fans of the genres.
Very basic Tower Defense game. Uninspired tower types, boring upgrades, no enemy variety, also quite ugly imo.
Changing this back to a thumbs up because the Devs actually listened and re-balanced the game. I haven't had a change to play the update yet, but I will return to the game (already re-downloaded) and can hopefully finish it. --- Original review below From the Steam achievements we know the number of players that completed each of the 5 'zones' (levels) of the game: Zone 1 34% Zone 2 22% Zone 3 13% Zone 4 5% Zone 5 3% 34% of players completing the first level is pretty low, but not catastrophically so. But to then lose a third of those players through level two, and then half of the remaining players each level after that, there is something seriously wrong with game balance and progression. Most games stabilise at a certain point. If you look at steam achievements you'll often see that whatever percent of the player base (usually around 50% for a decent game) made it past some critical point (usually half way through), the vast majority of those go on to finish it. But this game never gets there, it just sheds it's player base every step along the way. It doesn't help that the game has some serious QoL issues especially that deck building itself is a real chore. (it's not alone here, most deck building computer games fail hard on this part of the UI) When I finish a session it's not usually because I want to stop playing the game proper, but because I just can't face that deck building screen again today. Well at level 4.5 I'm giving up, joining the 90% of players who never even made it that far. It could be argued that 10+ hours of fun (despite 2+ hours of complete frustration) is well worth the price. I don't regret it. But I also think a game should be finishable by a reasonable proportion of the people who buy it. That is clearly not the case here. This game needed a publisher, someone who could look at it objectively and knock the rough edges off. There is a really good core game here, it looks pretty good and is very satisfying when it all comes together. But I'm changing my rating to a thumbs down because I don't think anyone should be starting something 97% of people were unable to finish, and I can't bring myself to play it anymore. --- Original comments at about the 9 hour mark. To add insult to injury, stage 3 you unlock abilities which only exacerbate the wave 10 problem. The game gives you a bunch of extra stuff you can do that makes waves 1-9 even more trivial but does not do anything for wave 10. It hides these abilities away in a menu you almost never use, rather than making them part of the main UI. I played several levels before I even remembered they were there, and it took me several minutes to find them. Also, deck building gets even worse as you get more cards. Desperately needs a way to thumbs up and thumbs down cards to help with sorting, sort by newest acquired, sort by rarity status. At this point I am literally taking a photo of the screen with my phone so I can copy existing decks for modifications. The fact that ever level has a different deck size and you have to have the exact number of cards is just stupid. --- Original review at 5 hour mark Well I'll give it a thumbs up for now because 4 hours of entertainment for the price is (sadly) above average, but: Spiking the difficulty every 5 waves in sponsored mode does not make the game fun or challenging. It just makes me feel like I've been wasting my time for 4 waves when I lose. I don't know how much more of that I can take. Deck management is a pain, as it usually is in these kinds of games. At the very least creating a new deck should copy the current deck. 99.999% of the time you want to modify an existing deck but keep the original for re-use later. Re-building a deck from scratch every time is excruciating and by far the worst part of the game. Forcing the deck limit during building means you are constantly having to remove a card before you can add one every step of the way. It makes the process unbearably fiddly. Just let me add all the cards I want and I can thin down to the deck limit at the end. This is how I would build a deck in real life. If I had to guess I'd say that the game was play-tested with this turned off because nobody would put up with this if they were playing the game all the time. Grinding is extremely unrewarding, mainly due to the points above. I don't mind a bit of mindless grindyness in games but you are essentially stuck with the silly choice of doing 5 levels and getting piddly rewards, or trying to stretch to 10 levels, which means cruising through 9 levels and getting creamed in level 10. I get they are trying to add replayability whilst giving you some cools stuff to work towards, but it seems highly unbalanced. This is not some free-to-play game with booster packs and time-skips available via microtransations; It's a pay-for game and progression needs to be reasonable so players can progress through the game they paid for and a reasonable rate. But regardless, I enjoyed it until I hit the wall and had to start grinding out of necessity instead of doing it as a fun diversion. I'll leave it for awhile and come back. That review may change to a thumbs down unless I can get some meaningful progression next time.
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
This and every other Pro feature is free until October 20, 2026. A free account is all it takes.
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English**languages with full audio support
Hours played at review time, across 46 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
Its a fun little Tower Def, good for wasting time and just chilling out.
타워를 설치해서 적 유닛의 이동 경로를 바꿀 수 있다는 점에서 어릴 적에 했던 Warzone tower defense와 느낌이 비슷합니다. 덱 빌딩 요소를 추가로 넣어서 덱 짜는 재미도 있습니다. 하지만 덱을 이루는 카드 수가 30장으로 고정되어 있지 않고 스테이지마다 달라서 덱을 매번 새로 짜는 것이 약간 귀찮습니다.
Addictive. I'd say the perfect tower defense game honestly. You molding the board with the turrets themselves is what I've always wanted out of a TD game. Won't ever need to buy another TD game imo.
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Players by region
Where this game's players are, estimated from review languages.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $0 | 50 | 50% | Free | |
| $4.3K | 13 | 100% | $10.99 | |
| $3.1K | 7 | 100% | $14.99 | |
| $445 | 2 | 100% | $6.99 | |
| $531 | 4 | 75% | $4.99 | |
| $245 | 1 | 100% | $9.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $32K | 223 | 72% | $4.99 | |
| $32K | 470 | 28% | $2.99 | |
| $32K | 192 | 48% | $5.99 | |
| $31.9K | 213 | 90% | $4.99 | |
| $32K | 101 | 84% | $19.99 | |
| $32K | 288 | 97% | $4.99 |