Tuning a survivor-like means playing every survivor-like you can get your hands on. Not for inspiration, exactly — the genre's silhouette is solved, the core loop is everyone's at this point — but as a reference set. When a level-up choice in FOXFIRE feels flat, the question is whether Vampire Survivors would have made the same choice feel like a reward. When the run pacing dips at minute eight, the question is whether Halls of Torment would have ramped the threat sooner.
Five games we keep going back to, and what each one teaches us when we put it on a screen next to FOXFIRE.
Vampire Survivors — the auto-fire rhythm
The reference everyone names because it's the one everyone has played. Luca Galante's original is still the cleanest study of how to make simple weapon animations feel like they individually have weight and impact rather than being simply fireworks on a screen. The audio cue per shot is doing more than most devs notice, as the projectiles sing in a somehow harmonious cacophony that grips the player's attention.
What we take: pacing of the first three minutes. Vampire Survivors layers its systems clearly and early over the first stretch of a run — weapons fire, enemies arrive, XP gems drop, level-up offers a choice, enemy formations offer challenge, elite arrives, chest drops — and the player never feels lost because each system arrives as a single new thing to process. We've spent more time than is reasonable trying to match that learning curve in FOXFIRE's tutorial run.
What we don't take: the frictionless WASD. Vampire Survivors works because movement is a stale machine as old as Snake; FOXFIRE is the bet that survivor-like fans want the version where movement is an immersive part of the challenge. That bet might be wrong. We won't know until launch.
Brotato — build depth as the only progression
Brotato's secret is that weapons are differentiated primarily by the decisions they force the player to make. The pistol rewards repositioning, the minigun rewards standing your ground and maintaining fire, and the slingshot rewards timing and target selection. As a result, weapons that initially seem weak often become powerful when paired with the right build and the plethora of stats make for endless theorycrafting and combinations.
What we take: the principle that every weapon in FOXFIRE should be the answer to a different question. The Mining Laser is for the player who wants to clear a path. The Ballistic Gun is for the player who likes to even-out their crowd dispersal. The Anchor is for the player who can't stop accelerating and wants to wipe out huge swathes of enemies with sharp turns.
What we don't take: the arena. Brotato runs are static, un-immersive cubicles with short timers; FOXFIRE runs are boundless exploratory missions. The space changes around the player as the FTL drive charges, and the late run is geographically different from the early run because the player has actually moved. Environmental dangers, fresh enemies and undiscovered lore all await our players in the shadows beyond the screen’s edge.
Nova Drift — the closest peer in mechanics
Nova Drift is the survivor-like FOXFIRE gets compared to most often by anyone who has actually played both. Justin ‘Pixelblade’ Stander built a thrust-based ship game where every system upgrade rewrites how the ship handles, and it's the closest thing to FOXFIRE's ship-as-toolkit philosophy on the market.
What we take: the lesson that thrust physics doesn't have to be punishing. Nova Drift handles inertia generously — ships have enough damping that new players acclimate to inside a run, and the high-skill ceiling reveals itself through modifier choices rather than pure piloting. FOXFIRE's starter ship embodies that lesson. We added rotation and damping specifically because Nova Drift and play-testing taught us that space-accurate physics-based movement needed to be somewhat tuned for player enjoyment.
What we don't take: the arena, again, and the modular ship. Nova Drift is a single ship the player customises through runs; FOXFIRE has five distinct ships that don't share parts. Different shapes for different design goals.
Cobalt Core — run pacing within a roguelite
Cobalt Core isn't a survivor-like. It's here because nobody in the roguelite space has built better run-to-run momentum than Rocket Rat Games. The way the ship dialog timing escalates per node, the way each act ends on a beat that promises the next one, the way the final-act music change rewires the player's posture — this is run-pacing as a craft.
What we take: the principle that a run should know it's ending before the player does. FOXFIRE's last 100 seconds are the FTL escape window because we wanted the run's structural climax to be a beat the player feels, not just a final boss. Cobalt Core taught us that giving the player time to register the climax is more important than giving them a new mechanic at the climax.
What we don't take: the deckbuilder layer. Different game.
Halls of Torment — environmental density and threat reading
Halls of Torment is the survivor-like that holds up after the genre had time to refine itself. Chasing Carrots took the Vampire Survivors loop and re-tuned it around Diablo's visual language: the screen reads as a place rather than a backdrop, threats arrive with telegraphs the player has time to parse, and the build pressure forces decisions instead of just rewards.
What we take: the threat-reading model. FOXFIRE's offscreen indicators owe more to Halls of Torment's ranged threats than to any space-sim ancestor. The principle that "things you can't see should still be legible" is a major design goal for FOXFIRE's HUD, and helps create that sense of immense scale that defines good space games.
What we don't take: the dungeon. FOXFIRE's stages are open space; Halls of Torment's are walled rooms. Trade-offs at the spawn-design level cascade differently in each.
What we learned this week
Two playtests ago, FOXFIRE's Stage 2 was leaving players in a quiet patch around the eight-minute mark. A combination of low spawn pressure, a too-spread-out level, and a level-up rhythm that had peaked too early. We weren't sure where the slack was coming from until we re-read how each of the five games intervenes to adjust pace in their mid-game point equivalents.
Vampire Survivors opens the evolution window. Brotato escalates the wave intensity but not the wave count. Nova Drift opens a new system tier. Cobalt Core changes the music. Halls of Torment introduces an offscreen ranged threat that demands repositioning. Five different solutions to the same pacing problem.
What we ended up doing for Stage 2: introducing three beam artillery weapons that fire simultaneously from offscreen, telegraphed across two beats, that the player has to actively hunt or actively dodge. Not exactly any of those five solutions; closer to Halls of Torment than the others. Three more playtests since and the eight-minute slack is gone.
That's the work. Test and re-test our game, find the slack, ask what each peer has done. Then take the lessons we can and combine them to engage our players with our own FOXFIRE-flavored twists of existing systems.