Overview
Let Them Come: Onslaught is a sci-fi survival roguelite built around alien waves and escalating firepower. Developed by Tuatara Games and published by Digital Bandidos, it pairs bullet heaven combat with weapons and upgrades that shape each run. Its 1980s sci-fi influence favors excessive weaponry, backed by an original synthwave soundtrack.
The Soldier and The Psychic provide the two playable character choices. Across four worlds, procedural maps and dynamic events complicate the basic survival loop. Alien waves supply the constant pressure, but optional objectives and unexpected enemies give each attempt additional demands beyond clearing whatever approaches.
How does the bullet heaven combat work?
Let Them Come: Onslaught combines wave survival with weapon-based build crafting and increasingly intense alien attacks. Flamethrowers and Photon Sabers establish the arsenal's sci-fi identity, while shields provide a defensive option alongside damage-focused tools. Surviving long enough also brings larger boss encounters.

Weapon upgrades and combined special effects make loadout composition central to combat. Crowd-clearing attacks address the horde, while precision-focused options offer a different approach. Shields add another consideration: a build can make room for protection instead of concentrating entirely on offensive tools.
- Weapon unlocks and upgrades
- Combined weapon effects
- Defensive shield options
- Orbital nuclear attacks

An orbital nuclear strike sits at the extravagant end of that arsenal. Its inclusion captures the game's approach to combat: familiar sci-fi hardware scaled up to answer an alien infestation with considerably more force.
Progression and changing battlefields
Battle rewards fund skill unlocks and enhancements between runs. That persistent progression gives each attempt a role in longer-term character development, while weapon combinations create room to experiment within individual runs. The roguelite loop links immediate survival with decisions about which skills deserve investment next.
The four worlds also change the circumstances surrounding those builds. Procedural maps alter layouts, and distant supply drops create reasons to move toward useful loot. Random Missions introduce optional objectives with rewards, adding another consideration while the alien assault continues.

Unexpected miniboss appearances add pressure outside the larger boss encounters. Alongside supply drops and Random Missions, these events make the battlefield more than a backdrop for weapon testing. A run's challenges depend on what appears across the map as well as the equipment selected to handle it.
Retro sci-fi with the volume up
The 1980s influence runs through Let Them Come: Onslaught's weapon choices as much as its atmosphere. Photon Sabers share the arsenal with flamethrowers, and orbital nuclear attacks push its action-movie logic well beyond conventional gunfire. The appeal is specific: alien survival built around deliberately excessive firepower.

Cartridge 87 supplies the original synthwave soundtrack, giving that retro direction a musical identity. It complements a bullet heaven game whose character comes from the collision of alien hordes and outlandish equipment. Between the shields and the orbital nukes, build crafting leaves room for both staying alive and making an enormous mess.


















