
Gear up and get going! Defend your outposts from waves of alien enemies with your mech. Build and upgrade your base, protecting the extraction of the mysterious planetary system’s rich resources!
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 24 → 0/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 25 chart moves that followed a price cut of more than 20% went a median of 10 places towards #1, and the 2,413 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
Wave Defense: Trappist is a top-down tower defense game with roguelike elements where you command a mech exploring the Trappist solar system searching for rare minerals. As you construct your outpost, you must balance between defending yourself against the oncoming waves of alien enemies and extracting the planet's precious riches.
Gather resources, build your base, mine rare minerals, and unveil new mech components and weapons to gain power! Design and upgrade your mechs to fit your playstyle and make them more powerful with each run you complete. Gaining experience to unlock power-ups will let you shape each run to be unique, but only by permanently making your mech faster, harder, and stronger will you be able to conquer the Trappist system.

Control your mech and defend against the incoming waves of aliens attacking your base. Steer clear of enemies by sprinting, dashing, and jumping away, or charge towards them to blast them!
Design, build, and customize your mech by finding new modules and weapons. You can modify your mech by finding new equipment, weapons, both ranged and melee, legs for speed, or radios to call down orbital support. Add your personal touch by changing the look of your mechs, choosing your favorite colors and parts.

Gather the critical resources to build and upgrade your buildings and mechs. But you need to prioritize between resources or defense to survive the alien waves and get out with the goods.
Joel Mull and Nima Khak, two renowned masters of underground electronic music, have created a thumping soundtrack to accompany your fierce mech battles. Having previously accompanied dark dance floors across the globe, this is the first time their unique compositions and sound design are being featured in a gaming experience.
Reviews
The game seems solid, but I am hoping it will get gamepad support and deck verification. I'd LOVE to play this on my lunch breaks.
Seems the developer abandoned this one. Shame, there are some good bones here, but it would have needed a bit more polish in a few areas. As it is, I cannot recommend buying it.
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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
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $6.3K | 18 | 83% | $12.99 | |
| $239 | 3 | 100% | $2.99 | |
| $209 | 1 | 100% | $6.99 | |
| — | 0 | — | — | |
| $59.1K | 166 | 43% | $9.99 | |
| $10K | 22 | 77% | $14.99 |
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| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $590 | 55 | 93% | $0.55 | |
| $591 | 83 | 72% | $0.99 | |
| $594 | 80 | 56% | $0.49 | |
| $597 | 84 | 61% | $0.54 | |
| $580 | 59 | 92% | $0.69 | |
| $580 | 83 | 87% | $0.49 |