Coop TD: Together

Coop TD: Together, made by Supermagic in Seoul's Seongdong district, has turned two. The game launched on October 28, 2024, and its second anniversary event opened with the version 1.7.0 update on October 22, 2026[1]. As of November 4, 2026 it ranks 24th among top-grossing games on the Korean App Store, 48th among free games there, and 38th in grossing in Taiwan[3]. A Korean defense game appearing on a chart across the water is worth a closer look, so this review works through what the official listings say has kept it going for two years.

Press to summon, stack to merge

The name says it plainly: a cooperative tower defense. The goal is to hold off waves that never stop, and the controls come down to a few taps. Pressing a button summons a random unit, and stacking identical units merges them quickly[1]. Someone new to the genre will not need long to learn the rules.

What you summon are little monsters. The description invites players to collect oddly cute monsters to their taste and to focus on favorites to grow stronger[1]. Because summoning is random, each run produces different units, and raising the collected monsters is the progression outside a match. The description says the stages to challenge have no visible end, which marks this as a game about pushing numbers upward rather than one with a finish line per run.

Dividing roles in co-op

There are three modes: co-op, solo and boss rush. The official line is that one short round is fine and so is playing on and on[1]. The appeal of co-op is in splitting roles, deciding who blocks and who attacks, and the description says strategy comes alive in the moment of thinking together[1]. Our Lucky Defense review noted that game's official cafe keeps a dedicated board for finding carries, and the lesson carries over: in co-op defense, where you find partners is the homework outside the game[4]. Coop TD lists a Naver cafe as its official community at the end of its description[1].

For solo players there are the solo mode and boss rush. Monsters can be raised and stages pushed without a partner, which makes the game easier to drop into than one that only works in pairs.

A new supreme demon for the anniversary

The version 1.7.0 notes announce the second anniversary event: co-op, progression, PvP and bingo events, a new supreme demon named Kaiser with liberation content, a Super Jumping feature to help growth and returning players, and a season pass with a new legendary skin and rewards[1]. An anniversary is when rewards open for newcomers and returners alike. Returning-player support being written into the notes means this is not a bad time to start.

PvP appearing in the event list is worth knowing in advance. Co-op is in the name, but there are places where you compete against other players, and there the strength of the monsters you have raised decides the outcome.

Ads, chance-based items and prices up to KRW 149,000

The game is free to download. Korean Google Play shows both a contains-ads label and in-app purchases, with items at KRW 1,500 to 149,000 each, and lists more than one million downloads[2]. The App Store description states that paid items include chance-based items and warns that foreign-currency charges may differ because of exchange rates and fees[1].

Neither store says how often ads appear or in what form, or what a KRW 149,000 item contains[1][2]. Where the probability tables for chance-based items are published is not stated in the descriptions either. Since monsters come from random summons, anyone who wants to check the odds will need to look inside the game and on the official cafe. This review has no basis to rate item efficiency or recommend purchases.

What two chart positions say together

Two numbers from the same day are worth reading side by side. On the Korean App Store, Coop TD sits at 24th in grossing but 48th among free downloads[3]. Grossing measures what current players are spending; the free chart measures how many new people are installing. A game that ranks higher on the first than the second is being carried by an existing player base that pays, not by a wave of newcomers. That is consistent with a two-year-old title whose update notes talk about returning players rather than first impressions[1].

The Taiwan grossing position, 38th, comes without a matching free-chart entry in the top 50[3]. Read the same way, Taiwan has a paying core but not a large inflow. For someone deciding whether to start now, the practical reading is that the lobbies will contain experienced players with well-raised monsters. In co-op that is an advantage, since a stronger partner carries the wave. In the PvP events the anniversary added, it is the opposite[1].

There is a second reading of those positions for anyone comparing Coop TD with other Korean co-op defense games. Our Lucky Defense review covered a title built around two players splitting one field; Coop TD's description instead lists three modes and makes the solo path a full option[1][4]. For a reader choosing between the two, the question is less which has the better tower rules and more whether you will reliably have a partner. If the answer is no, the game with a solo mode wins by default.

What a first-time player should know

The app is about 630MB and requires iOS 15.0 or later on iPhone. The age rating is 4+, and supported languages include English, Korean, Japanese, Chinese, French, German and Spanish[1]. The Taiwan chart position likely owes something to that language support[3].

On day one, learn the feel of summoning and merging in solo mode, and enter co-op after finding partners on the official cafe. Co-op with strangers can be more frustrating than playing alone when roles are not divided.

Based on official sources, the rating is 3.5. Controls that fit in a few taps, three modes in one app and returning-player support open right now are the strengths. Ads and chance-based items sharing the same app, with neither item contents nor the location of the odds stated in the listings, are the deductions. The notes do not say when the anniversary event ends, so anyone aiming for the returning-player rewards is safer not waiting.

Sources

[1] Apple. Coop TD: Together on the App Store (Korea). Release date, version 1.7.0 notes (October 22, 2026), description, age rating and languages, accessed November 4, 2026.

[2] Google. Coop TD: Together on Google Play (Korea). Download count, ads label, in-app item prices and developer address, accessed November 4, 2026.

[3] Apple. App Store top-grossing games (Korea). Free chart and Taiwan grossing checked in the same format, accessed November 4, 2026.

[4] GameSnapshots. Lucky Defense review. On matchmaking in co-op defense.